| diesinker | (noun) someone who makes dies | Synonyms: die-sinker, diemaker |
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| dieter | (noun) a person who diets | - |
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| differentiator | (noun) a person who (or that which) differentiates | Synonyms: discriminator |
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| diffuser | (noun) optical device that distributes the light of a lamp evenly | Synonyms: diffusor |
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| (noun) baffle that distributes sound waves evenly | Synonyms: diffusor |
| diffusor | (noun) optical device that distributes the light of a lamp evenly | Synonyms: diffuser |
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| (noun) baffle that distributes sound waves evenly | Synonyms: diffuser |
| digester | (noun) autoclave consisting of a vessel in which plant or animal materials are digested | - |
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| digger | (noun) a machine for excavating | Synonyms: excavator, power shovel, shovel |
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| (noun) a laborer who digs | - |
| digitiser | (noun) device for converting analogue signals into digital signals | Synonyms: analog-digital converter, analog-to-digital converter, digitizer |
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| digitizer | (noun) device for converting analogue signals into digital signals | Synonyms: analog-digital converter, analog-to-digital converter, digitiser |
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| dilater | (noun) a surgical instrument that is used to dilate or distend an opening or an organ | Synonyms: dilator |
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| 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 | - |
| dillydallier | (noun) someone who wastes time | Synonyms: dallier, dilly-dallier, lounger, mope |
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| dimer | (noun) a compound whose molecules are composed of two identical monomers | - |
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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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| 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 |
| 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) | - |
| 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 |
| dinosaur | (noun) any of numerous extinct terrestrial reptiles of the Mesozoic era | - |
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| diopter | (noun) a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists | Synonyms: dioptre |
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| dipper | (noun) small North American diving duck; males have bushy head plumage | Synonyms: Bucephela albeola, bufflehead, butterball |
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| (noun) small stocky diving bird without webbed feet; frequents fast-flowing streams and feeds along the bottom | Synonyms: water ouzel |
| (noun) a ladle that has a cup with a long handle | - |
| directioner | (noun) a fan on the band One Direction | - |
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| director | (noun) someone who controls resources and expenditures | Synonyms: manager, managing director |
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| (noun) the person who leads a musical group | Synonyms: conductor, music director |
| (noun) someone who supervises the actors and directs the action in the production of a show | Synonyms: theater director, theatre director |
| (noun) member of a board of directors | - |
| (noun) the person who directs the making of a film | Synonyms: film director |
| 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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| disarmer | (noun) someone opposed to violence as a means of settling disputes | Synonyms: pacificist, pacifist |
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| 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 |
| disburser | (noun) someone who spends money to purchase goods or services | Synonyms: expender, spender |
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| disclaimer | (noun) (law) a voluntary repudiation of a person's legal claim to something | - |
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| (noun) denial of any connection with or knowledge of | Synonyms: disavowal |
| discounter | (noun) a sales outlet offering goods at a discounted price | Synonyms: discount house, discount store, wholesale house |
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| discoverer | (noun) someone who is the first to observe something | Synonyms: finder, spotter |
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| (noun) someone who is the first to think of or make something | Synonyms: artificer, inventor |
| discriminator | (noun) a person who (or that which) differentiates | Synonyms: differentiator |
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| disentangler | (noun) a person who removes tangles; someone who takes something out of a tangled state | Synonyms: unraveler, unraveller |
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| disfavor | (noun) an inclination to withhold approval from some person or group | Synonyms: disapproval, disfavour, dislike |
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| (noun) the state of being out of favor | Synonyms: disfavour |
| disfavour | (noun) an inclination to withhold approval from some person or group | Synonyms: disapproval, disfavor, dislike |
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| (noun) the state of being out of favor | Synonyms: disfavor |
| dishonor | (noun) lacking honor or integrity | Synonyms: dishonour |
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| (noun) a state of shame or disgrace | Synonyms: dishonour |
| dishonour | (noun) lacking honor or integrity | Synonyms: dishonor |
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| (noun) a state of shame or disgrace | Synonyms: dishonor |
| dishwasher | (noun) a machine for washing dishes | Synonyms: dish washer, dishwashing machine |
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| (noun) someone who washes dishes | - |
| dishwater | (noun) water in which dishes and cooking utensils are washed | - |
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| disinfector | (noun) an apparatus for applying disinfectants. | - |
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| disorder | (noun) a disturbance of the peace or of public order | - |
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| (noun) a condition in which things are not in their expected places | Synonyms: disorderliness |
| (noun) a physical condition in which there is a disturbance of normal functioning | Synonyms: upset |
| disparager | (noun) one who disparages or belittles the worth of something | Synonyms: depreciator, detractor, knocker |
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| dispatcher | (noun) the official who signals the beginning of a race or competition | Synonyms: starter |
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| (noun) employee of a transportation company who controls the departures of vehicles according to weather conditions and in the interest of efficient service | - |
| dispenser | (noun) a container so designed that the contents can be used in prescribed amounts | - |
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| (noun) a person who dispenses | - |
| disprover | (noun) a debater who refutes or disproves by offering contrary evidence or argument | Synonyms: confuter, rebutter, refuter |
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| disrepair | (noun) in need of repairs; in need of repair | - |
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| dissembler | (noun) a person who professes beliefs and opinions that he or she does not hold in order to conceal his or her real feelings or motives | Synonyms: dissimulator, hypocrite, phoney, phony, pretender |
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| disseminator | (noun) someone who spreads the news | Synonyms: propagator |
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| dissenter | (noun) a person who dissents from some established policy | Synonyms: contestant, dissident, objector, protester |
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| dissimulator | (noun) a person who professes beliefs and opinions that he or she does not hold in order to conceal his or her real feelings or motives | Synonyms: dissembler, hypocrite, phoney, phony, pretender |
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| dissolver | (noun) a liquid substance capable of dissolving other substances | Synonyms: dissolvent, dissolving agent, resolvent, solvent |
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| distemper | (noun) a method of painting in which the pigments are mixed with water and a binder; used for painting posters or murals or stage scenery | - |
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| (noun) a painting created with paint that is made by mixing the pigments with water and a binder | - |
| (noun) paint made by mixing the pigments with water and a binder | - |
| (noun) an angry and disagreeable mood | Synonyms: ill humor, ill humour |
| (noun) any of various infectious viral diseases of animals | - |
| distiller | (noun) someone who distills alcoholic liquors | - |
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| distributer | (noun) electrical device that distributes voltage to the spark plugs of a gasoline engine in the order of the firing sequence | Synonyms: distributor, electrical distributor |
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| (noun) someone who markets merchandise | Synonyms: distributor |
| distributor | (noun) electrical device that distributes voltage to the spark plugs of a gasoline engine in the order of the firing sequence | Synonyms: distributer, electrical distributor |
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| (noun) a company that markets merchandise | - |
| (noun) someone who markets merchandise | Synonyms: distributer |
| (noun) a person with authority to allot or deal out or apportion | Synonyms: allocator |
| disturber | (noun) a troubler who interrupts or interferes with peace and quiet; someone who causes disorder and commotion | - |
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| dither | (noun) an excited state of agitation | Synonyms: flap, fuss, pother, tizzy |
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| diver | (noun) large somewhat primitive fish-eating diving bird of the Northern Hemisphere having webbed feet placed far back; related to the grebes | Synonyms: loon |
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| (noun) someone who dives (into water) | Synonyms: plunger |
| (noun) someone who works underwater | Synonyms: frogman, underwater diver |
| divider | (noun) a vertical structure that divides or separates (as a wall divides one room from another) | Synonyms: partition |
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| (noun) a drafting instrument resembling a compass that is used for dividing lines into equal segments or for transferring measurements | - |
| (noun) a person who separates something into parts or groups | - |
| (noun) a taxonomist who classifies organisms into many groups on the basis of relatively minor characteristics | Synonyms: splitter |
| diviner | (noun) someone who claims to discover hidden knowledge with the aid of supernatural powers | - |
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| divisor | (noun) the number by which a dividend is divided | - |
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| (noun) one of two or more integers that can be exactly divided into another integer | Synonyms: factor |
| docker | (noun) a laborer who loads and unloads vessels in a port | Synonyms: dock-walloper, dock worker, dockhand, dockworker, loader, longshoreman, lumper, stevedore |
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| dockworker | (noun) a laborer who loads and unloads vessels in a port | Synonyms: dock-walloper, dock worker, docker, dockhand, loader, longshoreman, lumper, stevedore |
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| doctor | (noun) children take the roles of physician or patient or nurse and pretend they are at the physician's office | - |
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| (noun) a licensed medical practitioner | Synonyms: doc, Dr., MD, medico, physician |
| (noun) a person who holds Ph.D. degree (or the equivalent) from an academic institution | Synonyms: Dr. |
| dodder | (noun) a leafless annual parasitic vine of the genus Cuscuta having whitish or yellow filamentous stems; obtain nourishment through haustoria | - |
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| dodderer | (noun) one who dodders from old age and weakness | - |
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| dodger | (noun) small oval cake of corn bread baked or fried (chiefly southern) | Synonyms: corn dab, corn dodger |
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| (noun) a shifty deceptive person | Synonyms: fox, slyboots |
| doer | (noun) a person who acts and gets things done | Synonyms: actor, worker |
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| dogfighter | (noun) a fighter pilot who engages in an aerial dogfights | - |
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| dojigger | (noun) something unspecified whose name is either forgotten or not known | Synonyms: doodad, doohickey, gimmick, gismo, gizmo, gubbins, thingamabob, thingamajig, thingmabob, thingmajig, thingumabob, thingumajig, thingummy, whatchamacallit, whatchamacallum, whatsis, widget |
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| dollar | (noun) a symbol of commercialism or greed | Synonyms: dollar mark, dollar sign |
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| (noun) a piece of paper money worth one dollar | Synonyms: buck, clam, dollar bill, one dollar bill |
| (noun) a United States coin worth one dollar | - |
| (noun) the basic monetary unit in many countries; equal to 100 cents | - |
| dolor | (noun) (poetry) painful grief | Synonyms: dolour |
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| dolour | (noun) (poetry) painful grief | Synonyms: dolor |
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| donor | (noun) person who makes a gift of property | Synonyms: bestower, conferrer, giver, presenter |
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| (noun) (medicine) someone who gives blood or tissue or an organ to be used in another person (the host) | - |
| door | (noun) a swinging or sliding barrier that will close the entrance to a room or building or vehicle | - |
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| (noun) the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close | Synonyms: doorway, room access, threshold |
| (noun) a room that is entered via a door | - |
| (noun) a structure where people live or work (usually ordered along a street or road) | - |
| (noun) anything providing a means of access (or escape) | - |
| doorkeeper | (noun) someone who guards an entrance | Synonyms: door guard, doorman, gatekeeper, hall porter, ostiary, porter |
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| (noun) an official stationed at the entrance of a courtroom or legislative chamber | Synonyms: usher |
| (noun) the lowest of the minor Holy Orders in the unreformed Western Church but now suppressed by the Roman Catholic Church | Synonyms: ostiarius, ostiary |
| doorknocker | (noun) a device (usually metal and ornamental) attached by a hinge to a door | Synonyms: knocker, rapper |
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| doorstopper | (noun) a stop that keeps open doors from moving | Synonyms: doorstop |
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| doppelganger | (noun) a ghostly double of a living person that haunts its living counterpart | - |
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| doppelzentner | (noun) a unit of weight equal to 100 kilograms in the metric system | Synonyms: centner, hundredweight, metric hundredweight |
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| dormer | (noun) a gabled extension built out from a sloping roof to accommodate a vertical window | Synonyms: dormer window |
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| dosemeter | (noun) a measuring instrument for measuring doses of ionizing radiation (X-rays or radioactivity) | Synonyms: dosimeter |
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| dosimeter | (noun) a measuring instrument for measuring doses of ionizing radiation (X-rays or radioactivity) | Synonyms: dosemeter |
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| dosser | (noun) someone who sleeps in any convenient place | Synonyms: street person |
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| dossier | (noun) a collection of papers containing detailed information about a particular person or subject (usually a person's record) | - |
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| doubleheader | (noun) two games instead of one (especially in baseball when the same two teams play two games on the same day) | Synonyms: double feature, twin bill |
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| doubler | (noun) an electronic device that doubles the voltage or the frequency of an input signal | - |
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| doubter | (noun) someone who habitually doubts accepted beliefs | Synonyms: sceptic, skeptic |
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| (noun) someone who is doubtful or noncommittal about something | Synonyms: agnostic |
| dowager | (noun) a widow holding property received from her deceased husband | - |
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| dower | (noun) a life estate to which a wife is entitled on the death of her husband | - |
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| (noun) money or property brought by a woman to her husband at marriage | Synonyms: dowery, dowry, portion |
| dowitcher | (noun) shorebird of the sandpiper family that resembles a snipe | - |
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| downer | (noun) a drug that reduces excitability and calms a person | Synonyms: depressant, sedative, sedative drug |
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| downpour | (noun) a heavy rain | Synonyms: cloudburst, deluge, pelter, soaker, torrent, waterspout |
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| dowser | (noun) forked stick that is said to dip down to indicate underground water or oil | Synonyms: divining rod, dowsing rod, water finder, waterfinder |
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| (noun) someone who uses a divining rod to find underground water | Synonyms: rhabdomancer, water witch |
| dozer | (noun) large powerful tractor; a large blade in front flattens areas of ground | Synonyms: bulldozer |
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| drafter | (noun) a writer of a draft | - |
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| dragger | (noun) a fishing boat that uses a trawl net or dragnet to catch fish | Synonyms: trawler |
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| (noun) someone who pulls or tugs or drags in an effort to move something | Synonyms: puller, tugger |
| draper | (noun) a dealer in fabrics and sewing materials (and sometimes in clothing and drygoods) | - |
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| drawbar | (noun) a strong metal bar bearing a hook to attach something to be pulled | - |
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| drawer | (noun) a boxlike container in a piece of furniture; made so as to slide in and out | - |
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| (noun) an artist skilled at drawing | Synonyms: draftsman |
| (noun) the person who writes a check or draft instructing the drawee to pay someone else | - |
| drawler | (noun) someone who speaks with a drawl | - |
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| dreamer | (noun) a person who escapes into a world of fantasy | Synonyms: escapist, wishful thinker |
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| (noun) someone guided more by ideals than by practical considerations | Synonyms: idealist |
| (noun) someone who is dreaming | - |