| desecration | (noun) blasphemous behavior; the act of depriving something of its sacred character | Synonyms: blasphemy, profanation, sacrilege |
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| desegregation | (noun) the action of incorporating a racial or religious group into a community | Synonyms: integrating, integration |
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| desensitisation | (noun) the process of reducing sensitivity | Synonyms: desensitization |
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| desensitization | (noun) the process of reducing sensitivity | Synonyms: desensitisation |
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| desertification | (noun) the gradual transformation of habitable land into desert; is usually caused by climate change or by destructive use of the land | - |
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| desertion | (noun) withdrawing support or help despite allegiance or responsibility | Synonyms: abandonment, defection |
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| (noun) the act of giving something up | Synonyms: abandonment, forsaking |
| desiccation | (noun) the process of extracting moisture | Synonyms: dehydration, drying up, evaporation |
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| (noun) dryness resulting from the removal of water | Synonyms: dehydration |
| designation | (noun) the act of putting a person into a non-elective position | Synonyms: appointment, assignment, naming |
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| (noun) the act of designating or identifying something | Synonyms: identification |
| (noun) identifying word or words by which someone or something is called and classified or distinguished from others | Synonyms: appellation, appellative, denomination |
| desolation | (noun) an event that results in total destruction | Synonyms: devastation |
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| (noun) sadness resulting from being forsaken or abandoned | Synonyms: forlornness, loneliness |
| (noun) the state of being decayed or destroyed | Synonyms: devastation |
| (noun) a bleak and desolate atmosphere | Synonyms: bareness, bleakness, nakedness |
| desorption | (noun) changing from an adsorbed state on a surface to a gaseous or liquid state | - |
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| desperation | (noun) desperate recklessness | - |
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| (noun) a state in which all hope is lost or absent | Synonyms: despair |
| despoilation | (noun) the act of stripping and taking by force | Synonyms: despoilment, despoliation, spoil, spoilation, spoliation |
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| despoliation | (noun) the act of stripping and taking by force | Synonyms: despoilation, despoilment, spoil, spoilation, spoliation |
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| desquamation | (noun) loss of bits of outer skin by peeling or shedding or coming off in scales | Synonyms: peeling, shedding |
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| dessertspoon | (noun) as much as a dessert spoon will hold | Synonyms: dessertspoonful |
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| destabilisation | (noun) the action of destabilizing; making something less stable (especially of a government or country or economy) | Synonyms: destabilization |
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| destabilization | (noun) the action of destabilizing; making something less stable (especially of a government or country or economy) | Synonyms: destabilisation |
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| (noun) an event that causes a loss of equilibrium (as of a ship or aircraft) | - |
| destalinisation | (noun) social process of neutralizing the influence of Joseph Stalin by revising his policies and removing monuments dedicated to him and renaming places named in his honor | Synonyms: de-Stalinisation, de-Stalinization, destalinization |
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| destalinization | (noun) social process of neutralizing the influence of Joseph Stalin by revising his policies and removing monuments dedicated to him and renaming places named in his honor | Synonyms: de-Stalinisation, de-Stalinization, destalinisation |
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| destination | (noun) the ultimate goal for which something is done | Synonyms: terminus |
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| (noun) written directions for finding some location; written on letters or packages that are to be delivered to that location | Synonyms: address, name and address |
| (noun) the place designated as the end (as of a race or journey) | Synonyms: finish, goal |
| destitution | (noun) a state without friends or money or prospects | - |
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| destruction | (noun) the termination of something by causing so much damage to it that it cannot be repaired or no longer exists | Synonyms: devastation |
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| (noun) an event that completely destroys something | Synonyms: demolition, wipeout |
| (noun) a final state | Synonyms: death, end |
| desynchronisation | (noun) the relation that exists when things occur at unrelated times | Synonyms: asynchronism, asynchrony, desynchronization, desynchronizing |
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| desynchronization | (noun) the relation that exists when things occur at unrelated times | Synonyms: asynchronism, asynchrony, desynchronisation, desynchronizing |
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| detection | (noun) the act of detecting something; catching sight of something | Synonyms: catching, espial, spotting, spying |
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| (noun) a police investigation to determine the perpetrator | Synonyms: detecting, detective work, sleuthing |
| (noun) the perception that something has occurred or some state exists | Synonyms: sensing |
| (noun) the detection that a signal is being received | Synonyms: signal detection |
| detention | (noun) a punishment in which a student must stay at school after others have gone home | - |
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| (noun) a state of being confined (usually for a short time) | Synonyms: custody, detainment, hold |
| deterioration | (noun) process of changing to an inferior state | Synonyms: declension, decline in quality, worsening |
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| (noun) a symptom of reduced quality or strength | Synonyms: impairment |
| determination | (noun) the act of determining the properties of something, usually by research or calculation | Synonyms: finding |
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| (noun) the act of making up your mind about something | Synonyms: conclusion, decision |
| (noun) the quality of being determined to do or achieve something; firmness of purpose | Synonyms: purpose |
| (noun) a position or opinion or judgment reached after consideration | Synonyms: conclusion, decision |
| (noun) deciding or controlling something's outcome or nature | - |
| detestation | (noun) hate coupled with disgust | Synonyms: abhorrence, abomination, execration, loathing, odium |
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| detonation | (noun) the act of detonating an explosive | - |
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| (noun) a violent release of energy caused by a chemical or nuclear reaction | Synonyms: blowup, explosion |
| detoxification | (noun) treatment for poisoning by neutralizing the toxic properties (normally a function of the liver) | - |
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| (noun) a treatment for addiction to drugs or alcohol intended to remove the physiological effects of the addictive substances | - |
| detraction | (noun) the act of discrediting or detracting from someone's reputation (especially by slander) | - |
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| (noun) a petty disparagement | Synonyms: petty criticism |
| detribalisation | (noun) the decline or termination of tribal organization | Synonyms: detribalization |
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| (noun) the act of causing tribal people to abandon their customs and adopt urban ways of living | Synonyms: detribalization |
| detribalization | (noun) the decline or termination of tribal organization | Synonyms: detribalisation |
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| (noun) the act of causing tribal people to abandon their customs and adopt urban ways of living | Synonyms: detribalisation |
| detrition | (noun) effort expended in moving one object over another with pressure | Synonyms: friction, rubbing |
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| (noun) the wearing down of rock particles by friction due to water or wind or ice | Synonyms: abrasion, attrition, grinding |
| (noun) erosion by friction | Synonyms: abrasion, attrition, corrasion |
| deuteron | (noun) the nucleus of deuterium; consists of one proton and one neutron; used as a bombarding particle in accelerators | - |
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| devaluation | (noun) the reduction of something's value or worth | - |
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| (noun) an official lowering of a nation's currency; a decrease in the value of a country's currency relative to that of foreign countries | - |
| devastation | (noun) the termination of something by causing so much damage to it that it cannot be repaired or no longer exists | Synonyms: destruction |
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| (noun) plundering with excessive damage and destruction | Synonyms: ravaging |
| (noun) an event that results in total destruction | Synonyms: desolation |
| (noun) the feeling of being confounded or overwhelmed | - |
| (noun) the state of being decayed or destroyed | Synonyms: desolation |
| deviation | (noun) deviate behavior | Synonyms: deviance |
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| (noun) a turning aside (of your course or attention or concern) | Synonyms: deflection, deflexion, digression, divagation, diversion |
| (noun) the error of a compass due to local magnetic disturbances | - |
| (noun) the difference between an observed value and the expected value of a variable or function | - |
| (noun) a variation that deviates from the standard or norm | Synonyms: departure, difference, divergence |
| devitalisation | (noun) the act of reducing the vitality of something | Synonyms: devitalization |
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| devitalization | (noun) the act of reducing the vitality of something | Synonyms: devitalisation |
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| devolution | (noun) the delegation of authority (especially from a central to a regional government) | Synonyms: devolvement |
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| (noun) the process of declining from a higher to a lower level of effective power or vitality or essential quality | Synonyms: degeneration |
| devotion | (noun) (usually plural) religious observance or prayers (usually spoken silently) | - |
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| (noun) commitment to some purpose | - |
| (noun) religious zeal; the willingness to serve God | Synonyms: cultism, veneration |
| (noun) feelings of ardent love | Synonyms: devotedness |
| dextrorotation | (noun) rotation to the right | Synonyms: clockwise rotation |
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| diagonalisation | (noun) changing a square matrix to diagonal form (with all non-zero elements on the principal diagonal) | Synonyms: diagonalization |
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| diagonalization | (noun) changing a square matrix to diagonal form (with all non-zero elements on the principal diagonal) | Synonyms: diagonalisation |
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| diapason | (noun) either of the two main stops on a pipe organ | Synonyms: diapason stop |
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| dicamptodon | (noun) salamanders found near cold streams throughout the year | Synonyms: dicamptodontid |
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| dichotomisation | (noun) the act of dividing into two sharply different categories | Synonyms: dichotomization |
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| dichotomization | (noun) the act of dividing into two sharply different categories | Synonyms: dichotomisation |
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| dicotyledon | (noun) flowering plant with two cotyledons; the stem grows by deposit on its outside | Synonyms: dicot, exogen, magnoliopsid |
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| dictation | (noun) speech intended for reproduction in writing | - |
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| (noun) an authoritative direction or instruction to do something | Synonyms: bid, bidding, command |
| (noun) matter that has been dictated and transcribed; a dictated passage | - |
| diction | (noun) the manner in which something is expressed in words | Synonyms: choice of words, phraseology, phrasing, verbiage, wording |
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| (noun) the articulation of speech regarded from the point of view of its intelligibility to the audience | Synonyms: enunciation |
| diencephalon | (noun) the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon | Synonyms: betweenbrain, interbrain, thalmencephalon |
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| differentiation | (noun) the mathematical process of obtaining the derivative of a function | - |
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| (noun) a discrimination between things as different and distinct on the basis of their characteristics or attributes | Synonyms: distinction |
| (noun) (biology) the structural adaptation of some body part for a particular function | Synonyms: specialisation, specialization |
| diffraction | (noun) when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands | - |
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| diffusion | (noun) the act of dispersing or diffusing something | Synonyms: dispersal, dispersion, dissemination |
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| (noun) the property of being diffused or dispersed | Synonyms: dissemination |
| (noun) the spread of social institutions (and myths and skills) from one society to another | - |
| (noun) (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration | - |
| digestion | (noun) learning and coming to understand ideas and information | - |
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| (noun) the organic process by which food is converted into substances that can be absorbed into the body | - |
| (noun) the process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat | - |
| digitalisation | (noun) the administration of digitalis for the treatment of certain heart disorders | Synonyms: digitalization |
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| digitalization | (noun) the administration of digitalis for the treatment of certain heart disorders | Synonyms: digitalisation |
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| digitisation | (noun) conversion of analog information into digital information | Synonyms: digitization |
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| digitization | (noun) conversion of analog information into digital information | Synonyms: digitisation |
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| digression | (noun) a turning aside (of your course or attention or concern) | Synonyms: deflection, deflexion, deviation, divagation, diversion |
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| (noun) wandering from the main path of a journey | Synonyms: excursion |
| (noun) a message that departs from the main subject | Synonyms: aside, divagation, excursus, parenthesis |
| dilapidation | (noun) the process of becoming dilapidated | Synonyms: ruin |
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| (noun) a state of deterioration due to old age or long use | Synonyms: decrepitude |
| dilatation | (noun) the act of expanding an aperture | Synonyms: dilation |
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| (noun) the state of being stretched beyond normal dimensions | Synonyms: distension, distention |
| dilation | (noun) the act of expanding an aperture | Synonyms: dilatation |
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| (noun) a lengthy discussion (spoken or written) on a particular topic | - |
| dilution | (noun) weakening (reducing the concentration) by the addition of water or a thinner | - |
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| (noun) a diluted solution | - |
| 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 | - |
| (verb) shape or form to required dimensions | - |
| (verb) indicate the dimensions on | - |
| dimetrodon | (noun) carnivorous dinosaur of the Permian in North America having a crest or dorsal sail | - |
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| 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 |
| dioon | (noun) any cycad of the genus Dioon; handsome palmlike cycads with robust crowns of leaves and rugged trunks | - |
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| dipteron | (noun) insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing | Synonyms: dipteran, dipterous insect, two-winged insects |
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| 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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| (verb) free from enchantment | Synonyms: disenchant |
| 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 |