| dominance | (noun) the power or right to give orders or make decisions | Synonyms: authorisation, authority, authorization, potency, say-so |
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| (noun) superior development of one side of the body | Synonyms: laterality |
| (noun) the organic phenomenon in which one of a pair of alleles present in a genotype is expressed in the phenotype and the other allele of the pair is not | - |
| (noun) the state that exists when one person or group has power over another | Synonyms: ascendance, ascendancy, ascendence, ascendency, control |
| dominant | (noun) an allele that produces the same phenotype whether its paired allele is identical or different | Synonyms: dominant allele |
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| (noun) (music) the fifth note of the diatonic scale | - |
| domination | (noun) social control by dominating | - |
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| (noun) power to dominate or defeat | Synonyms: mastery, supremacy |
| dominatrix | (noun) a dominating woman (especially one who plays that role in a sadomasochistic sexual relationship) | - |
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| domine | (noun) a clergyman; especially a settled minister or parson | Synonyms: dominee, dominie, dominus |
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| dominee | (noun) a clergyman; especially a settled minister or parson | Synonyms: domine, dominie, dominus |
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| domineeringness | (noun) the trait of being imperious and overbearing | Synonyms: imperiousness, overbearingness |
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| dominie | (noun) a clergyman; especially a settled minister or parson | Synonyms: domine, dominee, dominus |
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| 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 |
| domino | (noun) a small rectangular block used in playing the game of dominoes; the face of each block has two equal areas that can bear 0 to 6 dots | - |
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| (noun) a mask covering the upper part of the face but with holes for the eyes | Synonyms: eye mask, half mask |
| (noun) a loose hooded cloak worn with a half mask as part of a masquerade costume | - |
| dominoes | (noun) any of several games played with small rectangular blocks | Synonyms: dominos |
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| dominos | (noun) any of several games played with small rectangular blocks | Synonyms: dominoes |
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| dominus | (noun) a clergyman; especially a settled minister or parson | Synonyms: domine, dominee, dominie |
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| don | (noun) teacher at a university or college (especially at Cambridge or Oxford) | Synonyms: preceptor |
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| (noun) the head of an organized crime family | Synonyms: father |
| 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 |
| donee | (noun) the recipient of funds or other benefits | Synonyms: beneficiary |
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| dong | (noun) the basic unit of money in Vietnam | - |
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| dongle | (noun) (computer science) an electronic device that must be attached to a computer in order for it to use protected software | - |
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| donjon | (noun) the main tower within the walls of a medieval castle or fortress | Synonyms: dungeon, keep |
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| donkey | (noun) domestic beast of burden descended from the African wild ass; patient but stubborn | Synonyms: domestic ass, Equus asinus |
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| (noun) the symbol of the Democratic Party; introduced in cartoons by Thomas Nast in 1874 | - |
| donkeywork | (noun) hard monotonous routine work | Synonyms: drudgery, grind, plodding |
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| donna | (noun) an Italian woman of rank | - |
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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) | - |
| donut | (noun) a small ring-shaped friedcake | Synonyms: doughnut, sinker |
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| doob | (noun) trailing grass native to Europe now cosmopolitan in warm regions; used for lawns and pastures especially in southern United States and India | Synonyms: Bahama grass, Bermuda grass, Cynodon dactylon, devil grass, kweek, scutch grass, star grass |
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| doodad | (noun) something unspecified whose name is either forgotten or not known | Synonyms: dojigger, doohickey, gimmick, gismo, gizmo, gubbins, thingamabob, thingamajig, thingmabob, thingmajig, thingumabob, thingumajig, thingummy, whatchamacallit, whatchamacallum, whatsis, widget |
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| doodia | (noun) any fern of the genus Doodia having pinnate fronds with sharply dentate pinnae | Synonyms: rasp fern |
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| doodle | (noun) an aimless drawing | Synonyms: scrabble, scribble |
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| doodlebug | (noun) the larva of any of several insects | Synonyms: ant lion, antlion |
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| (noun) a small jet-propelled winged missile that carries a bomb | Synonyms: buzz bomb, flying bomb, robot bomb, V-1 |
| (noun) a small motor vehicle | - |
| doofus | (noun) a stupid incompetent person | Synonyms: dimwit, half-wit, nitwit |
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| doohickey | (noun) something unspecified whose name is either forgotten or not known | Synonyms: dojigger, doodad, gimmick, gismo, gizmo, gubbins, thingamabob, thingamajig, thingmabob, thingmajig, thingumabob, thingumajig, thingummy, whatchamacallit, whatchamacallum, whatsis, widget |
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| doom | (noun) an unpleasant or disastrous destiny | Synonyms: day of reckoning, doomsday, end of the world |
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| doomed | (noun) people who are destined to die soon | Synonyms: lost |
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| doomsday | (noun) an unpleasant or disastrous destiny | Synonyms: day of reckoning, doom, end of the world |
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| (noun) (New Testament) day at the end of time following Armageddon when God will decree the fates of all individual humans according to the good and evil of their earthly lives | Synonyms: crack of doom, Day of Judgement, Day of Judgment, day of reckoning, Doomsday, end of the world, eschaton, Judgement Day, Judgment Day, Last Day, Last Judgement, Last Judgment |
| 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) | - |
| doorbell | (noun) a push button at an outer door that gives a ringing or buzzing signal when pushed | Synonyms: bell, buzzer |
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| doorcase | (noun) the frame that supports a door | Synonyms: doorframe |
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| doorframe | (noun) the frame that supports a door | Synonyms: doorcase |
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| doorhandle | (noun) a knob used to release the catch when opening a door (often called `doorhandle' in Great Britain) | Synonyms: doorknob |
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| doorjamb | (noun) a jamb for a door | Synonyms: doorpost |
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| 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 |
| doorknob | (noun) a knob used to release the catch when opening a door (often called `doorhandle' in Great Britain) | Synonyms: doorhandle |
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| doorknocker | (noun) a device (usually metal and ornamental) attached by a hinge to a door | Synonyms: knocker, rapper |
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| doorlock | (noun) a lock on an exterior door | - |
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| doorman | (noun) someone who guards an entrance | Synonyms: door guard, doorkeeper, gatekeeper, hall porter, ostiary, porter |
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| doormat | (noun) a mat placed outside an exterior door for wiping the shoes before entering | Synonyms: welcome mat |
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| (noun) a person who is physically weak and ineffectual | Synonyms: weakling, wuss |
| doornail | (noun) a nail with a large head; formerly used to decorate doors | - |
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| doorplate | (noun) a nameplate fastened to a door; indicates the person who works or lives there | - |
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| doorpost | (noun) a jamb for a door | Synonyms: doorjamb |
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| doorsill | (noun) the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway | Synonyms: doorstep, threshold |
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| doorstep | (noun) the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway | Synonyms: doorsill, threshold |
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| doorstop | (noun) a stop that keeps open doors from moving | Synonyms: doorstopper |
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| doorstopper | (noun) a stop that keeps open doors from moving | Synonyms: doorstop |
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| doorway | (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: door, room access, threshold |
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| dooryard | (noun) a yard outside the front or rear door of a house | - |
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| dopa | (noun) amino acid that is formed in the liver and converted into dopamine in the brain | Synonyms: dihydroxyphenylalanine |
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| dopamine | (noun) a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension | Synonyms: Dopastat, Intropin |
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| dope | (noun) street names for marijuana | Synonyms: gage, grass, green goddess, locoweed, Mary Jane, pot, sens, sess, skunk, smoke, weed |
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| (noun) slang terms for inside information | Synonyms: low-down, poop, the skinny |
| (noun) carbonated drink flavored with extract from kola nuts | Synonyms: cola |
| (noun) an ignorant or foolish person | Synonyms: boob, booby, dumbbell, dummy, pinhead |
| 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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| dorbeetle | (noun) Old World dung beetle that flies with a droning sound | - |
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| dork | (noun) a dull stupid fatuous person | Synonyms: jerk |
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| dorm | (noun) a college or university building containing living quarters for students | Synonyms: dormitory, hall, residence hall, student residence |
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| dormancy | (noun) quiet and inactive restfulness | Synonyms: quiescence, quiescency, sleeping |
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| (noun) a state of quiet (but possibly temporary) inaction | Synonyms: quiescence, quiescency |
| dormer | (noun) a gabled extension built out from a sloping roof to accommodate a vertical window | Synonyms: dormer window |
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| dormitory | (noun) a college or university building containing living quarters for students | Synonyms: dorm, hall, residence hall, student residence |
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| (noun) a large sleeping room containing several beds | Synonyms: dorm room, dormitory room |
| dormouse | (noun) small furry-tailed squirrel-like Old World rodent that becomes torpid in cold weather | - |
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| dorsiflexion | (noun) the act of bending backward (of the body or a body part) | - |
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| dorsum | (noun) the back of the body of a vertebrate or any analogous surface (as the upper or outer surface of an organ or appendage or part) | - |
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| (noun) the posterior part of a human (or animal) body from the neck to the end of the spine | Synonyms: back |
| dory | (noun) marine fishes widely distributed in mid-waters and deep slope waters | - |
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| (noun) pike-like freshwater perches | Synonyms: jack salmon, Stizostedion vitreum, walleye, walleyed pike |
| (noun) a small boat of shallow draft with cross thwarts for seats and rowlocks for oars with which it is propelled | Synonyms: dinghy, rowboat |
| 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 |
| dose | (noun) a measured portion of medicine taken at any one time | Synonyms: dosage |
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| (noun) street name for lysergic acid diethylamide | Synonyms: acid, back breaker, battery-acid, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen |
| (noun) the quantity of an active agent (substance or radiation) taken in or absorbed at any one time | Synonyms: dosage |
| (noun) a communicable infection transmitted by sexual intercourse or genital contact | Synonyms: Cupid's disease, Cupid's itch, sexually transmitted disease, social disease, STD, VD, venereal disease, venereal infection, Venus's curse |
| 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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| dosimetry | (noun) measuring the dose of radiation emitted by a radioactive source | - |
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| 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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| dossel | (noun) an ornamental hanging of rich fabric hung behind the altar of a church or at the sides of a chancel | Synonyms: dossal |
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| dosser | (noun) someone who sleeps in any convenient place | Synonyms: street person |
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| dosshouse | (noun) a cheap lodging house | Synonyms: flophouse |
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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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| dot | (noun) street name for lysergic acid diethylamide | Synonyms: acid, back breaker, battery-acid, dose, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen |
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| (noun) the shorter of the two telegraphic signals used in Morse code | Synonyms: dit |
| (noun) a very small circular shape | Synonyms: point |
| dotage | (noun) mental infirmity as a consequence of old age; sometimes shown by foolish infatuations | Synonyms: second childhood, senility |
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| dotard | (noun) an oldster in his dotage; someone whose age has impaired his intellect | - |
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| dotrel | (noun) rare plover of upland areas of Eurasia | Synonyms: Charadrius morinellus, dotterel, Eudromias morinellus |
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| dotterel | (noun) rare plover of upland areas of Eurasia | Synonyms: Charadrius morinellus, dotrel, Eudromias morinellus |
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| dottle | (noun) the residue of partially burnt tobacco left caked in the bowl of a pipe after smoking | - |
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| double | (noun) a base hit on which the batter stops safely at second base | Synonyms: two-bagger, two-base hit, two-baser |
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| (noun) raising the stakes in a card game by a factor of 2 | Synonyms: doubling |
| (noun) a quantity that is twice as great as another | - |
| (noun) someone who closely resembles a famous person (especially an actor) | Synonyms: image, look-alike |
| (noun) a stand-in for movie stars to perform dangerous stunts | - |
| 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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| doubles | (noun) tennis played with two players on each side | - |
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| (noun) badminton played with two players on each side | - |
| doublespeak | (noun) any language that pretends to communicate but actually does not | - |
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| doublet | (noun) a man's close-fitting jacket; worn during the Renaissance | - |
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| doublethink | (noun) believing two contradictory ideas at the same time | - |
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| doubleton | (noun) (bridge) a pair of playing cards that are the only cards in their suit in the hand dealt to a player | - |
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| doubletree | (noun) a crossbar on a wagon or carriage to which two whiffletrees are attached in order to harness two horses abreast | - |
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| doubling | (noun) raising the stakes in a card game by a factor of 2 | Synonyms: double |
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| (noun) increase by a factor of two | - |
| doubloon | (noun) a former Spanish gold coin | - |
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| doubt | (noun) uncertainty about the truth or factuality or existence of something | Synonyms: doubtfulness, dubiousness, question |
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| (noun) the state of being unsure of something | Synonyms: doubtfulness, dubiety, dubiousness, incertitude, uncertainty |
| 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 |
| doubtfulness | (noun) uncertainty about the truth or factuality or existence of something | Synonyms: doubt, dubiousness, question |
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| (noun) the state of being unsure of something | Synonyms: doubt, dubiety, dubiousness, incertitude, uncertainty |