| dimension | (noun) the magnitude of something in a particular direction (especially length or width or height) | - |
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| (noun) magnitude or extent | Synonyms: proportion |
| (noun) a construct whereby objects or individuals can be distinguished | Synonyms: attribute, property |
| (noun) one of three Cartesian coordinates that determine a position in space | - |
| diminution | (noun) the act of decreasing or reducing something | Synonyms: decrease, reduction, step-down |
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| (noun) the statement of a theme in notes of lesser duration (usually half the length of the original) | - |
| (noun) change toward something smaller or lower | Synonyms: decline |
| direction | (noun) the act of managing something | Synonyms: management |
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| (noun) the act of setting and holding a course | Synonyms: guidance, steering |
| (noun) a general course along which something has a tendency to develop | - |
| (noun) the concentration of attention or energy on something | Synonyms: centering, centring, focal point, focus, focusing, focussing |
| (noun) something that provides direction or advice as to a decision or course of action | Synonyms: counsel, counseling, counselling, guidance |
| (noun) a formal statement of a command or injunction to do something | Synonyms: charge, commission |
| (noun) a message describing how something is to be done | Synonyms: instruction |
| (noun) a line leading to a place or point | Synonyms: way |
| (noun) the spatial relation between something and the course along which it points or moves | - |
| disaffection | (noun) disloyalty to the government or to established authority | - |
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| (noun) the feeling of being alienated from other people | Synonyms: alienation, estrangement |
| disaffirmation | (noun) the act of asserting that something alleged is not true | Synonyms: denial |
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| disambiguation | (noun) clarification that follows from the removal of ambiguity | - |
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| disapprobation | (noun) an expression of strong disapproval; pronouncing as wrong or morally culpable | Synonyms: condemnation |
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| disassociation | (noun) a state in which some integrated part of a person's life becomes separated from the rest of the personality and functions independently | Synonyms: dissociation |
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| (noun) the state of being unconnected in memory or imagination | - |
| disceptation | (noun) a contentious speech act; a dispute where there is strong disagreement | Synonyms: arguing, argument, contention, contestation, controversy, disputation, tilt |
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| discoloration | (noun) the act of changing the natural color of something by making it duller or dingier or unnatural or faded | Synonyms: discolouration |
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| (noun) a soiled or discolored appearance | Synonyms: discolouration, stain |
| discolouration | (noun) the act of changing the natural color of something by making it duller or dingier or unnatural or faded | Synonyms: discoloration |
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| (noun) a soiled or discolored appearance | Synonyms: discoloration, stain |
| discombobulation | (noun) a feeling of embarrassment that leaves you confused | Synonyms: confusion |
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| disconcertion | (noun) anxious embarrassment | Synonyms: discomfiture, discomposure, disconcertment |
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| disconnection | (noun) the act of breaking a connection | Synonyms: disjunction |
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| (noun) an unbridgeable disparity (as from a failure of understanding) | Synonyms: disconnect, gulf |
| (noun) state of being disconnected | Synonyms: disconnectedness, disjunction, disjuncture |
| discontinuation | (noun) the act of discontinuing or breaking off; an interruption (temporary or permanent) | Synonyms: discontinuance |
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| discretion | (noun) the trait of judging wisely and objectively | Synonyms: discernment |
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| (noun) the power of making free choices unconstrained by external agencies | Synonyms: free will |
| (noun) knowing how to avoid embarrassment or distress | Synonyms: circumspection, discreetness, prudence |
| (noun) refined taste; tact | Synonyms: delicacy |
| (noun) freedom to act or judge on one's own | - |
| discrimination | (noun) unfair treatment of a person or group on the basis of prejudice | Synonyms: favoritism, favouritism |
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| (noun) the cognitive process whereby two or more stimuli are distinguished | Synonyms: secernment |
| discussion | (noun) an exchange of views on some topic | Synonyms: give-and-take, word |
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| (noun) an extended communication (often interactive) dealing with some particular topic | Synonyms: discourse, treatment |
| disembarkation | (noun) the act of passengers and crew getting off of a ship or aircraft | Synonyms: debarkation, disembarkment |
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| disfiguration | (noun) the act of damaging the appearance or surface of something | Synonyms: defacement, disfigurement, mutilation |
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| (noun) an appearance that has been spoiled or is misshapen | Synonyms: deformity, disfigurement |
| disforestation | (noun) the removal of trees | Synonyms: deforestation |
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| disfunction | (noun) (medicine) any disturbance in the functioning of an organ or body part or a disturbance in the functioning of a social group | Synonyms: dysfunction |
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| disillusion | (noun) freeing from false belief or illusions | Synonyms: disenchantment, disillusionment |
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| disinclination | (noun) a certain degree of unwillingness | Synonyms: hesitancy, hesitation, indisposition, reluctance |
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| (noun) that toward which you are inclined to feel dislike | - |
| disinfection | (noun) treatment to destroy harmful microorganisms | - |
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| disinfestation | (noun) the activity of getting rid of vermin | - |
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| disinflation | (noun) a reduction of prices intended to improve the balance of payments | - |
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| disinformation | (noun) misinformation that is deliberately disseminated in order to influence or confuse rivals (foreign enemies or business competitors etc.) | - |
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| disintegration | (noun) total destruction | Synonyms: annihilation |
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| (noun) separation into component parts | Synonyms: dissolution |
| (noun) the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation | Synonyms: decay, radioactive decay |
| (noun) in a decomposed state | Synonyms: decomposition |
| (noun) a loss (or serious disruption) of organization in some system | - |
| disjunction | (noun) the act of breaking a connection | Synonyms: disconnection |
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| (noun) state of being disconnected | Synonyms: disconnectedness, disconnection, disjuncture |
| dislocation | (noun) the act of disrupting an established order so it fails to continue | Synonyms: breakdown |
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| (noun) an event that results in a displacement or discontinuity | Synonyms: disruption |
| (noun) a displacement of a part (especially a bone) from its normal position (as in the shoulder or the vertebral column) | - |
| dismission | (noun) the termination of someone's employment (leaving them free to depart) | Synonyms: discharge, dismissal, firing, liberation, release, sack, sacking |
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| (noun) official notice that you have been fired from your job | Synonyms: dismissal, pink slip |
| disorganisation | (noun) the disturbance of a systematic arrangement causing disorder and confusion | Synonyms: disorganization |
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| (noun) a condition in which an orderly system has been disrupted | Synonyms: disarrangement, disorganization |
| disorganization | (noun) the disturbance of a systematic arrangement causing disorder and confusion | Synonyms: disorganisation |
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| (noun) a condition in which an orderly system has been disrupted | Synonyms: disarrangement, disorganisation |
| disorientation | (noun) a wild delusion (especially one induced by a hallucinogenic drug) | Synonyms: freak out |
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| (noun) confusion (usually transient) about where you are and how to proceed; uncertainty as to direction | - |
| dispassion | (noun) objectivity and detachment | Synonyms: dispassionateness, dryness |
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| dispensation | (noun) the act of dispensing (giving out in portions) | - |
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| (noun) an exemption from some rule or obligation | - |
| (noun) a share that has been dispensed or distributed | - |
| dispersion | (noun) the act of dispersing or diffusing something | Synonyms: diffusion, dispersal, dissemination |
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| (noun) the spatial or geographic property of being scattered about over a range, area, or volume | Synonyms: distribution |
| (noun) spreading widely or driving off | Synonyms: scattering |
| disposition | (noun) the act or means of getting rid of something | Synonyms: disposal |
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| (noun) your usual mood | Synonyms: temperament |
| (noun) a natural or acquired habit or characteristic tendency in a person or thing | - |
| (noun) an attitude of mind especially one that favors one alternative over others | Synonyms: inclination, tendency |
| dispossession | (noun) the expulsion of someone (such as a tenant) from the possession of land by process of law | Synonyms: eviction, legal ouster |
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| (noun) freeing from evil spirits | Synonyms: exorcism |
| disproportion | (noun) lack of proportion; imbalance among the parts of something | Synonyms: dissymmetry, imbalance |
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| disputation | (noun) the formal presentation of a stated proposition and the opposition to it (usually followed by a vote) | Synonyms: debate, public debate |
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| (noun) a contentious speech act; a dispute where there is strong disagreement | Synonyms: arguing, argument, contention, contestation, controversy, disceptation, tilt |
| disqualification | (noun) the act of preventing someone from participating by finding them unqualified | - |
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| (noun) unfitness that bars you from participation | - |
| disquisition | (noun) an elaborate analytical or explanatory essay or discussion | - |
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| disruption | (noun) the act of causing disorder | Synonyms: perturbation |
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| (noun) an act of delaying or interrupting the continuity | Synonyms: break, gap, interruption |
| (noun) an event that results in a displacement or discontinuity | Synonyms: dislocation |
| (noun) a disorderly outburst or tumult | Synonyms: commotion, disturbance, flutter, hoo-ha, hoo-hah, hurly burly, kerfuffle, to-do |
| dissatisfaction | (noun) the feeling of being displeased and discontent | - |
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| dissection | (noun) cutting so as to separate into pieces | - |
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| (noun) detailed critical analysis or examination one part at a time (as of a literary work) | - |
| (noun) a minute and critical analysis | - |
| dissemination | (noun) the act of dispersing or diffusing something | Synonyms: diffusion, dispersal, dispersion |
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| (noun) the property of being diffused or dispersed | Synonyms: diffusion |
| (noun) the opening of a subject to widespread discussion and debate | Synonyms: airing, public exposure, spreading |
| dissension | (noun) disagreement among those expected to cooperate | Synonyms: discord |
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| (noun) a conflict of people's opinions or actions or characters | Synonyms: disagreement, dissonance |
| dissertation | (noun) a treatise advancing a new point of view resulting from research; usually a requirement for an advanced academic degree | Synonyms: thesis |
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| dissimilation | (noun) breakdown in living organisms of more complex substances into simpler ones together with release of energy | Synonyms: catabolism, destructive metabolism, katabolism |
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| (noun) a linguistic process by which one of two similar sounds in a word becomes less like the other | - |
| dissimulation | (noun) the act of deceiving | Synonyms: deceit, deception, dissembling |
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| dissipation | (noun) dissolute indulgence in sensual pleasure | Synonyms: dissolution, licentiousness, looseness, profligacy |
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| (noun) useless or profitless activity; using or expending or consuming thoughtlessly or carelessly | Synonyms: waste, wastefulness |
| (noun) breaking up and scattering by dispersion | - |
| dissociation | (noun) the act of removing from association | - |
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| (noun) (chemistry) the temporary or reversible process in which a molecule or ion is broken down into smaller molecules or ions | - |
| (noun) a state in which some integrated part of a person's life becomes separated from the rest of the personality and functions independently | Synonyms: disassociation |
| dissolution | (noun) the termination or disintegration of a relationship (between persons or nations) | Synonyms: breakup |
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| (noun) the termination of a meeting | Synonyms: adjournment |
| (noun) dissolute indulgence in sensual pleasure | Synonyms: dissipation, licentiousness, looseness, profligacy |
| (noun) separation into component parts | Synonyms: disintegration |
| (noun) the process of going into solution | Synonyms: dissolving |
| dissuasion | (noun) persuading not to do or believe something; talking someone out of a belief or an intended course of action | - |
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| (noun) a communication that dissuades you | - |
| distension | (noun) the act of expanding by pressure from within | Synonyms: distention |
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| (noun) the state of being stretched beyond normal dimensions | Synonyms: dilatation, distention |
| distention | (noun) the act of expanding by pressure from within | Synonyms: distension |
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| (noun) the state of being stretched beyond normal dimensions | Synonyms: dilatation, distension |
| distillation | (noun) the process of purifying a liquid by boiling it and condensing its vapors | Synonyms: distillment |
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| (noun) a purified liquid produced by condensation from a vapor during distilling; the product of distilling | Synonyms: distillate |
| distinction | (noun) a distinguishing difference between similar things or people | - |
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| (noun) a discrimination between things as different and distinct on the basis of their characteristics or attributes | Synonyms: differentiation |
| (noun) an honor awarded to someone in recognition of achievement or superiority | - |
| (noun) high status importance owing to marked superiority | Synonyms: eminence, note, preeminence |
| distortion | (noun) the act of distorting something so it seems to mean something it was not intended to mean | Synonyms: overrefinement, straining, torture, twisting |
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| (noun) the mistake of misrepresenting the facts | - |
| (noun) a change for the worse | Synonyms: deformation |
| (noun) an optical phenomenon resulting from the failure of a lens or mirror to produce a good image | Synonyms: aberration, optical aberration |
| (noun) a change (usually undesired) in the waveform of an acoustic or analog electrical signal; the difference between two measurements of a signal (as between the input and output signal) | - |
| (noun) a shape resulting from distortion | Synonyms: distorted shape |
| distraction | (noun) an entertainment that provokes pleased interest and distracts you from worries and vexations | Synonyms: beguilement |
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| (noun) the act of distracting; drawing someone's attention away from something | Synonyms: misdirection |
| (noun) mental turmoil | - |
| (noun) an obstacle to attention | - |
| distribution | (noun) the act of distributing or spreading or apportioning | - |
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| (noun) the commercial activity of transporting and selling goods from a producer to a consumer | - |
| (noun) the spatial or geographic property of being scattered about over a range, area, or volume | Synonyms: dispersion |
| (noun) (statistics) an arrangement of values of a variable showing their observed or theoretical frequency of occurrence | Synonyms: statistical distribution |
| disunion | (noun) the termination or destruction of union | - |
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| divagation | (noun) a turning aside (of your course or attention or concern) | Synonyms: deflection, deflexion, deviation, digression, diversion |
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| (noun) a message that departs from the main subject | Synonyms: aside, digression, excursus, parenthesis |
| divarication | (noun) branching at a wide angle | - |
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| diversification | (noun) the act of introducing variety (especially in investments or in the variety of goods and services offered) | Synonyms: variegation |
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| (noun) the condition of being varied | - |
| diversion | (noun) an activity that diverts or amuses or stimulates | Synonyms: recreation |
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| (noun) a turning aside (of your course or attention or concern) | Synonyms: deflection, deflexion, deviation, digression, divagation |
| (noun) an attack calculated to draw enemy defense away from the point of the principal attack | Synonyms: diversionary attack |
| divination | (noun) the art or gift of prophecy (or the pretense of prophecy) by supernatural means | Synonyms: foretelling, fortune telling, soothsaying |
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| (noun) a prediction uttered under divine inspiration | Synonyms: prophecy |
| (noun) successful conjecture by unusual insight or good luck | - |
| division | (noun) the act or process of dividing | - |
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| (noun) an arithmetic operation that is the inverse of multiplication; the quotient of two numbers is computed | - |
| (noun) the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart | Synonyms: partition, partitioning, sectionalisation, sectionalization, segmentation |
| (noun) one of the portions into which something is regarded as divided and which together constitute a whole | Synonyms: part, section |
| (noun) discord that splits a group | Synonyms: variance |
| (noun) an army unit large enough to sustain combat | - |
| (noun) a group of ships of similar type | Synonyms: naval division |
| (noun) a unit of the United States Air Force usually comprising two or more wings | Synonyms: air division |
| (noun) an administrative unit in government or business | - |
| (noun) (botany) taxonomic unit of plants corresponding to a phylum | - |
| (noun) (biology) a group of organisms forming a subdivision of a larger category | - |
| (noun) a league ranked by quality | Synonyms: class |
| documentation | (noun) documentary validation | Synonyms: support |
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| (noun) confirmation that some fact or statement is true through the use of documentary evidence | Synonyms: certification, corroboration |
| (noun) program listings or technical manuals describing the operation and use of programs | Synonyms: software documentation |
| domestication | (noun) accommodation to domestic life | - |
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| (noun) the attribute of having been domesticated | Synonyms: tameness |
| (noun) adaptation to intimate association with human beings | - |
| domiciliation | (noun) temporary living quarters | Synonyms: diggings, digs, lodgings, pad |
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| domination | (noun) social control by dominating | - |
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| (noun) power to dominate or defeat | Synonyms: mastery, supremacy |
| dominion | (noun) a region marked off for administrative or other purposes | Synonyms: district, territorial dominion, territory |
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| (noun) dominance or power through legal authority | Synonyms: rule |
| donation | (noun) act of giving in common with others for a common purpose especially to a charity | Synonyms: contribution |
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| (noun) a voluntary gift (as of money or service or ideas) made to some worthwhile cause | Synonyms: contribution |
| dorsiflexion | (noun) the act of bending backward (of the body or a body part) | - |
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| dramatisation | (noun) a dramatic representation | Synonyms: dramatization |
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| (noun) conversion into dramatic form | Synonyms: dramatization |
| dramatization | (noun) a dramatic representation | Synonyms: dramatisation |
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| (noun) conversion into dramatic form | Synonyms: dramatisation |
| duplication | (noun) the act of copying or making a duplicate (or duplicates) of something | Synonyms: gemination |
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| (noun) a copy that corresponds to an original exactly | Synonyms: duplicate |
| duration | (noun) continuance in time | Synonyms: length |
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| (noun) the property of enduring or continuing in time | Synonyms: continuance |
| (noun) the period of time during which something continues | Synonyms: continuance |
| durion | (noun) tree of southeastern Asia having edible oval fruit with a hard spiny rind | Synonyms: durian, durian tree, Durio zibethinus |
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| dysfunction | (noun) (medicine) any disturbance in the functioning of an organ or body part or a disturbance in the functioning of a social group | Synonyms: disfunction |
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| ebullition | (noun) an unrestrained expression of emotion | Synonyms: blowup, effusion, gush, outburst |
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| eburnation | (noun) a change that occurs in degenerative joint disease in which bone is converted into a dense smooth substance resembling ivory | - |
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| echolocation | (noun) determining the location of something by measuring the time it takes for an echo to return from it | Synonyms: echo sounding |
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| edification | (noun) uplifting enlightenment | Synonyms: sophistication |
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| edition | (noun) something a little different from others of the same type | Synonyms: variant, variation, version |
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| (noun) an issue of a newspaper | - |
| (noun) the form in which a text (especially a printed book) is published | - |
| (noun) all of the identical copies of something offered to the public at the same time | - |
| education | (noun) the activities of educating or instructing; activities that impart knowledge or skill | Synonyms: didactics, educational activity, instruction, pedagogy, teaching |
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| (noun) the profession of teaching (especially at a school or college or university) | - |
| (noun) the result of good upbringing (especially knowledge of correct social behavior) | Synonyms: breeding, training |
| (noun) knowledge acquired by learning and instruction | - |
| (noun) the gradual process of acquiring knowledge | - |
| effectuation | (noun) the act of implementing (providing a practical means for accomplishing something); carrying into effect | Synonyms: implementation |
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| effusion | (noun) flow under pressure | - |
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| (noun) an unrestrained expression of emotion | Synonyms: blowup, ebullition, gush, outburst |
| egression | (noun) the act of coming (or going) out; becoming apparent | Synonyms: egress, emergence |
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| ejaculation | (noun) an abrupt emphatic exclamation expressing emotion | Synonyms: interjection |
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| (noun) the discharge of semen in males | - |
| ejection | (noun) the act of forcing out someone or something | Synonyms: exclusion, expulsion, riddance |
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| (noun) the act of expelling or projecting or ejecting | Synonyms: expulsion, forcing out, projection |
| elaboration | (noun) developing in intricate and painstaking detail | Synonyms: working out |
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| (noun) addition of extra material or illustration or clarifying detail | Synonyms: amplification |
| (noun) marked by elaborately complex detail | Synonyms: elaborateness, intricacy, involution |
| (noun) a discussion that provides additional information | Synonyms: enlargement, expansion |
| (noun) the result of improving something | Synonyms: refinement |
| elation | (noun) a feeling of joy and pride | Synonyms: high spirits, lightness |
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| (noun) an exhilarating psychological state of pride and optimism; an absence of depression | - |
| election | (noun) the act of selecting someone or something; the exercise of deliberate choice | - |
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| (noun) a vote to select the winner of a position or political office | - |
| (noun) the predestination of some individuals as objects of divine mercy (especially as conceived by Calvinists) | - |
| (noun) the status or fact of being elected | - |
| electrification | (noun) the activity of thrilling or markedly exciting some person or group | - |
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| (noun) the act of providing electricity | - |
| electrocution | (noun) killing by electric shock | - |
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| (noun) execution by electricity | Synonyms: burning |
| electrodeposition | (noun) the deposition of a substance on an electrode by the action of electricity (especially by electrolysis) | - |
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