| digs | (noun) temporary living quarters | Synonyms: diggings, domiciliation, lodgings, pad |
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| (noun) an excavation for ore or precious stones or for archaeology | Synonyms: diggings |
| dihybrid | (noun) a hybrid produced by parents that differ only at two gene loci that have two alleles each | - |
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| dihydrostreptomycin | (noun) antibiotic consisting of a hydrogenated form of streptomycin; used against tuberculosis and tularemia and Gram-negative organisms | - |
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| dihydroxyphenylalanine | (noun) amino acid that is formed in the liver and converted into dopamine in the brain | Synonyms: dopa |
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| dika | (noun) African tree with edible yellow fruit resembling mangos; valued for its oil-rich seed and hardy green wood that resists termites | Synonyms: Irvingia gabonensis, wild mango, wild mango tree |
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| dike | (noun) a barrier constructed to contain the flow of water or to keep out the sea | Synonyms: dam, dyke |
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| (noun) (slang) offensive term for a lesbian who is noticeably masculine | Synonyms: butch, dyke |
| (verb) enclose with a dike | Synonyms: dyke |
| dilapidate | (verb) fall into decay or ruin | Synonyms: crumble, decay |
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| (verb) bring into a condition of decay or partial ruin by neglect or misuse | - |
| dilapidated | (adjective) in deplorable condition | Synonyms: bedraggled, broken-down, derelict, ramshackle, tatterdemalion, tumble-down |
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| 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 |
| dilate | (verb) become wider | Synonyms: distend |
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| (verb) add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing | Synonyms: elaborate, enlarge, expand, expatiate, exposit, expound, flesh out, lucubrate |
| dilater | (noun) a surgical instrument that is used to dilate or distend an opening or an organ | Synonyms: dilator |
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| 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 | - |
| dilator | (noun) a surgical instrument that is used to dilate or distend an opening or an organ | Synonyms: dilater |
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| (noun) a drug that causes dilation | - |
| (noun) a muscle or nerve that dilates or widens a body part | - |
| dilatoriness | (noun) slowness as a consequence of not getting around to it | Synonyms: procrastination |
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| dilatory | (adjective) wasting time | Synonyms: laggard, pokey, poky |
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| dildo | (noun) a vibrating device that substitutes for an erect penis to provide vaginal stimulation | - |
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| dilemma | (noun) state of uncertainty or perplexity especially as requiring a choice between equally unfavorable options | Synonyms: quandary |
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| dilettante | (adjective) showing frivolous or superficial interest; amateurish | Synonyms: dilettanteish, dilettantish, sciolistic |
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| (noun) an amateur who engages in an activity without serious intentions and who pretends to have knowledge | Synonyms: dabbler, sciolist |
| dilettanteish | (adjective) showing frivolous or superficial interest; amateurish | Synonyms: dilettante, dilettantish, sciolistic |
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| dilettantish | (adjective) showing frivolous or superficial interest; amateurish | Synonyms: dilettante, dilettanteish, sciolistic |
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| diligence | (noun) a diligent effort | Synonyms: application |
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| (noun) persevering determination to perform a task | Synonyms: industriousness, industry |
| (noun) conscientiousness in paying proper attention to a task; giving the degree of care required in a given situation | - |
| diligent | (adjective) characterized by care and perseverance in carrying out tasks | - |
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| (adjective) quietly and steadily persevering especially in detail or exactness | Synonyms: persevering |
| diligently | (adverb) with diligence; in a diligent manner | - |
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| dill | (noun) aromatic threadlike foliage of the dill plant used as seasoning | Synonyms: dill weed |
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| (noun) aromatic Old World herb having aromatic threadlike foliage and seeds used as seasoning | Synonyms: Anethum graveolens |
| dillenia | (noun) any of several evergreen trees or shrubs of the genus Dillenia grown for their foliage and nodding flowers resembling magnolias which are followed by fruit that is used in curries and jellies and preserves | - |
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| dillydallier | (noun) someone who wastes time | Synonyms: dallier, dilly-dallier, lounger, mope |
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| dillydally | (verb) postpone doing what one should be doing | Synonyms: dilly-dally, drag one's feet, drag one's heels, procrastinate, shillyshally, stall |
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| diltiazem | (noun) a calcium blocker (trade name Cardizem) used in treating hypertension or angina or heart failure | Synonyms: Cardizem |
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| diluent | (noun) a diluting agent | Synonyms: dilutant, thinner |
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| dilutant | (noun) a diluting agent | Synonyms: diluent, thinner |
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| dilute | (adjective) reduced in strength or concentration or quality or purity | Synonyms: diluted |
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| (verb) lessen the strength or flavor of a solution or mixture | Synonyms: cut, reduce, thin, thin out |
| (verb) corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones | Synonyms: adulterate, debase, load, stretch |
| diluted | (adjective) reduced in strength or concentration or quality or purity | Synonyms: dilute |
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| dilution | (noun) weakening (reducing the concentration) by the addition of water or a thinner | - |
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| (noun) a diluted solution | - |
| diluvial | (adjective) of or connected with a deluge | Synonyms: diluvian |
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| diluvian | (adjective) of or connected with a deluge | Synonyms: diluvial |
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| dim | (adjective) made dim or less bright | Synonyms: dimmed |
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| (adjective) lacking in light; not bright or harsh | Synonyms: subdued |
| (adjective) offering little or no hope | Synonyms: black, bleak |
| (adjective) lacking clarity or distinctness | Synonyms: faint, shadowy, vague, wispy |
| (adjective) slow to learn or understand; lacking intellectual acuity | Synonyms: dense, dull, dumb, obtuse, slow |
| (verb) make dim or lusterless | - |
| (verb) become dim or lusterless | - |
| (verb) make dim by comparison or conceal | Synonyms: blind |
| (verb) become vague or indistinct | Synonyms: blur, slur |
| (verb) switch (a car's headlights) from a higher to a lower beam | Synonyms: dip |
| dime | (noun) street name for a packet of illegal drugs that is sold for ten dollars | Synonyms: dime bag |
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| (noun) a United States coin worth one tenth of a dollar | - |
| dimenhydrinate | (noun) antihistamine and antiemetic (trade name Dramamine) used to treat motion sickness | Synonyms: Dramamine |
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| 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 | - |
| dimensional | (adjective) of or relating to dimensions | - |
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| (adjective) having dimension--the quality or character or stature proper to a person | - |
| dimensionality | (noun) the spatial property of having dimensions | - |
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| dimensioning | (adjective) indicating or determining size and position in space | - |
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| dimer | (noun) a compound whose molecules are composed of two identical monomers | - |
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| dimethylglyoxime | (noun) a compound used in analysis as a precipitant for palladium or nickel | - |
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| dimetrodon | (noun) carnivorous dinosaur of the Permian in North America having a crest or dorsal sail | - |
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| diminish | (verb) decrease in size, extent, or range | Synonyms: decrease, fall, lessen |
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| (verb) lessen the authority, dignity, or reputation of | Synonyms: belittle |
| diminished | (adjective) (of an organ or body part) diminished in size or strength as a result of disease or injury or lack of use | Synonyms: atrophied, wasted |
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| (adjective) impaired by diminution | Synonyms: lessened, vitiated, weakened |
| (adjective) made to seem smaller or less (especially in worth) | Synonyms: belittled, small |
| (adjective) (of musical intervals) reduction by a semitone of any perfect or minor musical interval | - |
| diminishing | (adjective) becoming smaller or less or appearing to do so | - |
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| diminuendo | (adjective) (music) gradually decreasing in volume | Synonyms: decrescendo |
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| (noun) (music) a gradual decrease in loudness | Synonyms: decrescendo |
| 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 |
| diminutive | (adjective) very small | Synonyms: bantam, flyspeck, lilliputian, midget, petite, tiny |
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| (noun) a word that is formed with a suffix (such as -let or -kin) to indicate smallness | - |
| diminutiveness | (noun) the property of being very small in size | Synonyms: minuteness, petiteness, tininess, weeness |
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| dimity | (noun) a strong cotton fabric with a raised pattern; used for bedcovers and curtains | - |
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| dimly | (adverb) in a dim indistinct manner | Synonyms: indistinctly |
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| (adverb) in a manner lacking interest or vitality | Synonyms: palely, pallidly |
| (adverb) with a dim light | Synonyms: murkily |
| dimmed | (adjective) made dim or less bright | Synonyms: dim |
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| dimmer | (noun) a rheostat that varies the current through an electric light in order to control the level of illumination | - |
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| dimness | (noun) the property of lights or sounds that lack brilliance or are reduced in intensity | Synonyms: subduedness |
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| (noun) the quality of being dim or lacking contrast | Synonyms: faintness |
| (noun) the state of being poorly illuminated | Synonyms: duskiness |
| dimorphic | (adjective) occurring or existing in two different forms | Synonyms: dimorphous |
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| dimorphism | (noun) (biology) the existence of two forms of individual within the same animal species (independent of sex differences) | - |
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| (noun) (chemistry) the property of certain substances that enables them to exist in two distinct crystalline forms | - |
| dimorphous | (adjective) occurring or existing in two different forms | Synonyms: dimorphic |
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| dimout | (noun) darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft) | Synonyms: blackout, brownout |
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| dimple | (noun) a small natural hollow in the cheek or chin | - |
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| (noun) any slight depression in a surface | - |
| (noun) a chad that has been punched or dimpled but all four corners are still attached | Synonyms: dimpled chad, pregnant chad |
| (verb) produce dimples while smiling | - |
| (verb) mark with, or as if with, dimples | - |
| dimwit | (noun) a stupid incompetent person | Synonyms: doofus, half-wit, nitwit |
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| din | (noun) the act of making a noisy disturbance | Synonyms: commotion, ruckus, ruction, rumpus, tumult |
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| (noun) a loud harsh or strident noise | Synonyms: blare, blaring, cacophony, clamor |
| (verb) instill (into a person) by constant repetition | - |
| (verb) make a resonant sound, like artillery | Synonyms: boom |
| dinar | (noun) the basic unit of money in Algeria | Synonyms: Algerian dinar |
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| (noun) the basic unit of money in Bahrain; equal to 1,000 fils | Synonyms: Bahrain dinar |
| (noun) the basic unit of money in Iraq; equal to 1,000 fils | Synonyms: Iraqi dinar |
| (noun) the basic unit of money in Jordan; equal to 1,000 fils | Synonyms: Jordanian dinar |
| (noun) the basic unit of money in Kuwait; equal 1,000 fils | Synonyms: Kuwaiti dinar |
| (noun) the basic unit of money in Libya | Synonyms: Libyan dinar |
| (noun) the basic unit of money in Tunisia | Synonyms: Tunisian dinar |
| (noun) the basic unit of money in Yugoslavia | Synonyms: Yugoslavian dinar |
| (noun) 100 dinars equal 1 rial in Iran | Synonyms: Iranian dinar |
| dine | (verb) have supper; eat dinner | - |
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| (verb) give dinner to; host for dinner | - |
| diner | (noun) a passenger car where food is served in transit | Synonyms: buffet car, dining car, dining compartment |
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| (noun) a restaurant that resembles a dining car | - |
| (noun) a person eating a meal (especially in a restaurant) | - |
| dinero | (noun) informal terms for money | Synonyms: boodle, bread, cabbage, clams, dough, gelt, kale, lettuce, lolly, loot, lucre, moolah, pelf, scratch, shekels, simoleons, sugar, wampum |
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| dinette | (noun) a small area off of a kitchen that is used for dining | - |
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| ding | (noun) an impression in a surface (as made by a blow) | Synonyms: dent, gouge, nick |
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| (noun) a ringing sound | - |
| (verb) go `ding dong', like a bell | Synonyms: dingdong, dong |
| dingbat | (noun) a silly empty-headed person | - |
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| dingdong | (adverb) heartily or earnestly | - |
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| (verb) go `ding dong', like a bell | Synonyms: ding, dong |
| dinge | (noun) discoloration due to dirtiness | Synonyms: dinginess |
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| (verb) make dingy | - |
| (verb) make a dent or impression in | Synonyms: batter |
| dinghy | (noun) a small boat of shallow draft with cross thwarts for seats and rowlocks for oars with which it is propelled | Synonyms: dory, rowboat |
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| dingily | (adverb) in a dingy manner | Synonyms: grubbily, grungily |
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| dinginess | (noun) discoloration due to dirtiness | Synonyms: dinge |
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| dingle | (noun) a small wooded hollow | Synonyms: dell |
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| dingo | (noun) wolflike yellowish-brown wild dog of Australia | Synonyms: Canis dingo, warragal, warrigal |
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| dingy | (adjective) causing dejection | Synonyms: blue, dark, disconsolate, dismal, drab, drear, dreary, gloomy, grim, sorry |
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| (adjective) thickly covered with ingrained dirt or soot | Synonyms: begrimed, grimy, grubby, grungy, raunchy |
| (adjective) (of color) discolored by impurities; not bright and clear | Synonyms: dirty, muddied, muddy |
| dining | (noun) the act of eating dinner | - |
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| dink | (noun) a soft return so that the tennis ball drops abruptly after crossing the net | Synonyms: drop shot |
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| dinkey | (noun) a small locomotive | Synonyms: dinky |
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| dinky | (adjective) (British informal) pretty and neat | - |
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| (adjective) small and unimpressive | Synonyms: insignificant |
| (noun) a small locomotive | Synonyms: dinkey |
| dinner | (noun) the main meal of the day served in the evening or at midday | - |
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| (noun) a party of people assembled to have dinner together | Synonyms: dinner party |
| dinnertime | (noun) the customary or habitual hour for the evening meal | Synonyms: suppertime |
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| dinnerware | (noun) the tableware (plates and platters and serving bowls etc.) used in serving a meal | - |
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| dinoceras | (noun) a variety of dinocerate | Synonyms: uintathere |
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| dinocerate | (noun) an extinct ungulate | - |
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| dinoflagellate | (noun) chiefly marine protozoa having two flagella; a chief constituent of plankton | - |
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| dinosaur | (noun) any of numerous extinct terrestrial reptiles of the Mesozoic era | - |
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| dint | (noun) interchangeable with `means' in the expression `by means of' | - |
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| diocesan | (adjective) belonging to or governing a diocese | - |
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| (noun) a bishop having jurisdiction over a diocese | - |
| diocese | (noun) the territorial jurisdiction of a bishop | Synonyms: bishopric, episcopate |
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| diode | (noun) a semiconductor that consists of a p-n junction | Synonyms: crystal rectifier, junction rectifier, semiconductor diode |
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| (noun) a thermionic tube having two electrodes; used as a rectifier | Synonyms: rectifying tube, rectifying valve |
| dioecian | (adjective) having male and female reproductive organs in separate plants or animals | Synonyms: dioecious |
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| dioecious | (adjective) having male and female reproductive organs in separate plants or animals | Synonyms: dioecian |
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| dioestrous | (adjective) (of animals that have several estrous cycles in one breeding season) in a period of sexual inactivity | Synonyms: diestrous, diestrual, dioestrual |
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| dioestrual | (adjective) (of animals that have several estrous cycles in one breeding season) in a period of sexual inactivity | Synonyms: diestrous, diestrual, dioestrous |
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| diol | (noun) any of a class of alcohols having 2 hydroxyl groups in each molecule | Synonyms: dihydric alcohol, glycol |
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