| diagonalisation | (noun) changing a square matrix to diagonal form (with all non-zero elements on the principal diagonal) | Synonyms: diagonalization |
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| dichotomisation | (noun) the act of dividing into two sharply different categories | Synonyms: dichotomization |
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| diflunisal | (noun) nonsteroidal anti-inflammatory (trade name Dolobid) used to treat arthritis and other inflammatory conditions | Synonyms: Dolobid |
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| digitalisation | (noun) the administration of digitalis for the treatment of certain heart disorders | Synonyms: digitalization |
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| digitisation | (noun) conversion of analog information into digital information | Synonyms: digitization |
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| dinosaur | (noun) any of numerous extinct terrestrial reptiles of the Mesozoic era | - |
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| diocesan | (noun) a bishop having jurisdiction over a diocese | - |
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| disa | (noun) any orchid of the genus Disa; beautiful orchids with dark green leaves and usually hooded flowers; much prized as emblematic flowers in their native regions | - |
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| disability | (noun) the condition of being unable to perform as a consequence of physical or mental unfitness | Synonyms: disablement, handicap, impairment |
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| disabled | (noun) people collectively who are crippled or otherwise physically handicapped | Synonyms: handicapped |
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| disablement | (noun) the condition of being unable to perform as a consequence of physical or mental unfitness | Synonyms: disability, handicap, impairment |
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| disaccharidase | (noun) an enzyme that catalyzes the hydrolysis of disaccharides into monosaccharides | - |
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| disaccharide | (noun) any of a variety of carbohydrates that yield two monosaccharide molecules on complete hydrolysis | - |
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| disadvantage | (noun) the quality of having an inferior or less favorable position | - |
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| 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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| disagreeableness | (noun) an ill-tempered and offensive disposition | - |
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| (noun) the quality of being disagreeable and unpleasant | - |
| disagreement | (noun) a difference between conflicting facts or claims or opinions | Synonyms: discrepancy, divergence, variance |
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| (noun) the speech act of disagreeing or arguing or disputing | - |
| (noun) a conflict of people's opinions or actions or characters | Synonyms: dissension, dissonance |
| disambiguation | (noun) clarification that follows from the removal of ambiguity | - |
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| disambiguator | (noun) (computer science) a natural language processing application that tries to determine the intended meaning of a word or phrase by examining the linguistic context in which it is used | - |
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| disappearance | (noun) the act of leaving secretly or without explanation | Synonyms: disappearing |
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| (noun) gradually ceasing to be visible | Synonyms: fade |
| (noun) the event of passing out of sight | - |
| (noun) ceasing to exist | - |
| disappearing | (noun) the act of leaving secretly or without explanation | Synonyms: disappearance |
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| disappointment | (noun) an act (or failure to act) that disappoints someone | Synonyms: dashing hopes |
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| (noun) a feeling of dissatisfaction that results when your expectations are not realized | Synonyms: letdown |
| disapprobation | (noun) an expression of strong disapproval; pronouncing as wrong or morally culpable | Synonyms: condemnation |
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| disapproval | (noun) the act of disapproving or condemning | - |
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| (noun) an inclination to withhold approval from some person or group | Synonyms: disfavor, disfavour, dislike |
| (noun) the expression of disapproval | - |
| (noun) a feeling of disliking something or what someone is doing | - |
| disarmament | (noun) act of reducing or depriving of arms | Synonyms: disarming |
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| disarmer | (noun) someone opposed to violence as a means of settling disputes | Synonyms: pacificist, pacifist |
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| disarming | (noun) act of reducing or depriving of arms | Synonyms: disarmament |
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| disarrangement | (noun) a condition in which an orderly system has been disrupted | Synonyms: disorganisation, disorganization |
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| disarray | (noun) untidiness (especially of clothing and appearance) | Synonyms: disorderliness |
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| (noun) a mental state characterized by a lack of clear and orderly thought and behavior | Synonyms: confusedness, confusion, mental confusion, muddiness |
| disassembly | (noun) the act of taking something apart (as a piece of machinery) | Synonyms: dismantlement, dismantling |
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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 | - |
| disaster | (noun) an act that has disastrous consequences | - |
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| (noun) an event resulting in great loss and misfortune | Synonyms: calamity, cataclysm, catastrophe, tragedy |
| (noun) a state of extreme (usually irremediable) ruin and misfortune | Synonyms: catastrophe |
| disavowal | (noun) denial of any connection with or knowledge of | Synonyms: disclaimer |
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| disbursal | (noun) the act of spending or disbursing money | Synonyms: disbursement, outlay, spending |
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| (noun) amounts paid for goods and services that may be currently tax deductible (as opposed to capital expenditures) | Synonyms: disbursement, expense |
| discussant | (noun) a participant in a formal discussion | - |
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| dismissal | (noun) the termination of someone's employment (leaving them free to depart) | Synonyms: discharge, dismission, firing, liberation, release, sack, sacking |
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| (noun) a judgment disposing of the matter without a trial | Synonyms: judgement of dismissal, judgment of dismissal |
| (noun) official notice that you have been fired from your job | Synonyms: dismission, pink slip |
| (noun) permission to go; the sending away of someone | - |
| 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 |
| dispensability | (noun) the quality possessed by something that you can get along without | Synonyms: dispensableness |
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| dispensableness | (noun) the quality possessed by something that you can get along without | Synonyms: dispensability |
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| dispensary | (noun) clinic where medicine and medical supplies are dispensed | - |
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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 | - |
| dispersal | (noun) the act of dispersing or diffusing something | Synonyms: diffusion, dispersion, dissemination |
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| disposable | (noun) an item that can be disposed of after it has been used | - |
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| disposal | (noun) the act or means of getting rid of something | Synonyms: disposition |
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| (noun) a method of tending to or managing the affairs of some group of people (especially the group's business affairs) | Synonyms: administration |
| (noun) a kitchen appliance for disposing of garbage | Synonyms: electric pig, garbage disposal |
| (noun) the power to use something or someone | - |
| dissatisfaction | (noun) the feeling of being displeased and discontent | - |
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| dosage | (noun) a measured portion of medicine taken at any one time | Synonyms: dose |
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| (noun) the quantity of an active agent (substance or radiation) taken in or absorbed at any one time | Synonyms: dose |
| dossal | (noun) an ornamental hanging of rich fabric hung behind the altar of a church or at the sides of a chancel | Synonyms: dossel |
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| dramatisation | (noun) a dramatic representation | Synonyms: dramatization |
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| (noun) conversion into dramatic form | Synonyms: dramatization |
| dressage | (noun) maneuvers of a horse in response to body signals by the rider | - |
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| dromaeosaur | (noun) a kind of maniraptor | - |
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| dysaphia | (noun) a disorder in the sense of touch | - |
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| dysarthria | (noun) impaired articulatory ability resulting from defects in the peripheral motor nerves or in the speech musculature | - |
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| edaphosaurus | (noun) heavy-bodied reptile with a dorsal sail or crest; of the late Paleozoic | - |
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| edmontosaurus | (noun) duck-billed dinosaur from Canada found as a fossilized mummy with skin | - |
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| embassador | (noun) a diplomat of the highest rank; accredited as representative from one country to another | Synonyms: ambassador |
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| emissary | (noun) someone sent on a mission to represent the interests of someone else | Synonyms: envoy |
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| endopsammon | (noun) The microscopic fauna of sand and mud. | - |
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| enthronisation | (noun) the ceremony of installing a new monarch | Synonyms: coronation, enthronement, enthronization, investiture |
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| epipsammon | (noun) Microscopic flora and fauna found on the surface of and/or attached to sand grains. | - |
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| equalisation | (noun) the act of making equal or uniform | Synonyms: equalization, leveling |
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| ersatz | (noun) an artificial or inferior substitute or imitation | - |
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| espousal | (noun) the act of accepting with approval; favorable reception | Synonyms: acceptance, acceptation, adoption |
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| (noun) archaic terms for a wedding or wedding feast | Synonyms: bridal |
| (noun) the act of becoming betrothed or engaged | Synonyms: betrothal |
| essay | (noun) a tentative attempt | - |
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| (noun) an analytic or interpretive literary composition | - |
| essayer | (noun) one who tries | Synonyms: attempter, trier |
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| essayist | (noun) a writer of literary works | Synonyms: litterateur |
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| expressage | (noun) rapid transport of goods | Synonyms: express |
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| extemporisation | (noun) a performance given extempore without planning or preparation | Synonyms: extemporization, improvisation |
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| exteriorisation | (noun) embodying in an outward form | Synonyms: exteriorization, externalisation, externalization |
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| externalisation | (noun) embodying in an outward form | Synonyms: exteriorisation, exteriorization, externalization |
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| (noun) attributing to outside causes | Synonyms: externalization |
| extravasation | (noun) the process of exuding or passing out of a vessel into surrounding tissues; said of blood or lymph or urine | - |
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| (noun) (of volcanoes) pouring out fumes or lava (or a deposit so formed) | Synonyms: eructation, eruption |
| (noun) an extravasated liquid (blood or lymph or urine); the product of extravasation | - |
| factorisation | (noun) (mathematics) the resolution of an expression into factors such that when multiplied together they give the original expression | Synonyms: factoring, factorization |
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| familiarisation | (noun) the experience of becoming familiar with something | Synonyms: familiarization |
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| federalisation | (noun) the act of being put under federal control | Synonyms: federalization |
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| (noun) the state of being under federal control | Synonyms: federalization |
| feminisation | (noun) the process of becoming feminized; the development of female characteristics (loss of facial hair or breast enlargement) in a male because of hormonal disorders or castration | Synonyms: feminization |
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| fertilisation | (noun) creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant | Synonyms: fecundation, fertilization, impregnation |
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| (noun) making fertile as by applying fertilizer or manure | Synonyms: dressing, fecundation, fertilization |
| fictionalisation | (noun) writing in a fictional form | Synonyms: fabrication, fictionalization |
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| (noun) a literary work based partly or wholly on fact but written as if it were fiction | Synonyms: fictionalization |
| finalisation | (noun) the act of finalizing | Synonyms: finalization |
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| flindosa | (noun) tall Australian timber tree yielding tough hard wood used for staves etc | Synonyms: Flindersia australis, flindosy, native beech |
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| flotsam | (noun) the floating wreckage of a ship | Synonyms: jetsam |
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| fluoridisation | (noun) the addition of a fluoride to the water supply (to prevent dental decay) | Synonyms: fluoridation, fluoridization |
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| focalisation | (noun) the act of bringing into focus | Synonyms: focalization, focusing |
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| (noun) the confinement of an infection to a limited area | Synonyms: focalization |
| foresail | (noun) the lowest sail on the foremast of a square-rigged vessel | - |
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| formalisation | (noun) the act of making formal (as by stating formal rules governing classes of expressions) | Synonyms: formalization |
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| forsaking | (noun) the act of giving something up | Synonyms: abandonment, desertion |
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| (noun) the act of forsaking | Synonyms: giving up |
| fossa | (noun) largest carnivore of Madagascar; intermediate in some respects between cats and civets | Synonyms: Cryptoprocta ferox, fossa cat |
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| (noun) a concavity in a surface (especially an anatomical depression) | Synonyms: pit |
| fossilisation | (noun) becoming inflexible or out of date | Synonyms: fossilization |
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| (noun) the process of fossilizing a plant or animal that existed in some earlier age; the process of being turned to stone | Synonyms: fossilization |
| fraternisation | (noun) associating with others in a brotherly or friendly way; especially with an enemy | Synonyms: fraternization |
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| fretsaw | (noun) fine-toothed power saw with a narrow blade; used to cut curved outlines | Synonyms: jigsaw, scroll saw |
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| fusain | (noun) a stick of black carbon material used for drawing | Synonyms: charcoal |
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| gaffsail | (noun) a quadrilateral fore-and-aft sail suspended from a gaff | Synonyms: gaff-headed sail |
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| galvanisation | (noun) either the work of covering with metal by the use of a galvanic current or the coating of iron with zinc to protect it from rusting | Synonyms: galvanization |
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| (noun) stimulation that arouses a person to lively action | Synonyms: galvanization |
| (noun) stimulation with a galvanic current | Synonyms: galvanization |
| gangsaw | (noun) a power saw that has several parallel blades making simultaneous cuts | - |
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| generalisation | (noun) an idea or conclusion having general application | Synonyms: generality, generalization |
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| (noun) reasoning from detailed facts to general principles | Synonyms: generalization, induction, inductive reasoning |
| (noun) (psychology) transfer of a response learned to one stimulus to a similar stimulus | Synonyms: generalization, stimulus generalisation, stimulus generalization |
| (noun) the process of formulating general concepts by abstracting common properties of instances | Synonyms: abstraction, generalization |
| glamorisation | (noun) the act of glamorizing; making something or someone more beautiful (often in a superficial way) | Synonyms: glamorization, glamourisation, glamourization |
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| glamourisation | (noun) the act of glamorizing; making something or someone more beautiful (often in a superficial way) | Synonyms: glamorisation, glamorization, glamourization |
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| glissade | (noun) (ballet) a gliding or sliding step in ballet | - |
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| glissando | (noun) a rapid series of ascending or descending notes on the musical scale | - |
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| globalisation | (noun) growth to a global or worldwide scale | Synonyms: globalization |
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| gloriosa | (noun) any plant of the genus Gloriosa of tropical Africa and Asia; a perennial herb climbing by means of tendrils at leaf tips having showy yellow to red or purple flowers; all parts are poisonous | Synonyms: climbing lily, creeping lily, Gloriosa superba, glory lily |
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