9-letter words containing a, d, u
- dualities — Plural form of duality.
- duathlons — Plural form of duathlon.
- dubitable — open to doubt; doubtful; uncertain.
- dubitably — Defn en.
- dubitancy — doubt; uncertainty
- duck hawk — a peregrine falcon of the American subspecies Falco peregrinus anatum, noted for its especially swift flight.
- duck-walk — to walk like a duck, as with legs apart and feet turned outward.
- duckboard — a board or boards laid as a track or floor over wet or muddy ground.
- ducktails — Plural form of ducktail.
- duckwheat — India wheat.
- duct tape — a strongly adhesive silver-gray cloth tape, used in plumbing, household repairs, etc.
- dudelsack — doodlesack.
- dulcamara — a type of vine with orange fruit and purple flowers that is a member of the Solanaceae family
- dulcianas — Plural form of dulciana.
- dulcorate — (obsolete, transitive) To sweeten; to make less acrimonious.
- dulocracy — rule by slaves.
- dumaguete — a city on S Negros, in the S central Philippines.
- dumb ague — an irregular form of intermittent malarial fever, lacking the usual chill.
- dumb cane — a West Indian foliage plant, Dieffenbachia seguine, of the arum family, having yellow-blotched leaves that cause temporary speechlessness when chewed.
- dumb dora — a foolishly simple, stupid, or scatterbrained woman.
- dumb-cane — a West Indian foliage plant, Dieffenbachia seguine, of the arum family, having yellow-blotched leaves that cause temporary speechlessness when chewed.
- dumbarton — Also, Dunbarton [duhn-bahr-tn] /dʌnˈbɑr tn/ (Show IPA). Also called Dumbartonshire [duhm-bahr-tn-sheer, -sher] /dʌmˈbɑr tnˌʃɪər, -ʃər/ (Show IPA). a historic county in W Scotland.
- dumbass's — a thoroughly stupid person; blockhead.
- dunbarton — former county of W Scotland
- dunce cap — a tall, cone-shaped hat formerly worn by slow or lazy students as a punishment in school.
- dundonian — a native or inhabitant of Dundee
- dung heap — a heap of dung
- dungannon — a district of S Northern Ireland, in Co Tyrone. Pop: 48 695 (2003 est). Area: 783 sq km (302 sq miles)
- dungareed — wearing dungarees
- dungarees — dungarees. work clothes, overalls, etc., of blue denim. blue jeans.
- dunnaging — baggage or personal effects.
- dunsinane — a hill NE of Perth, in central Scotland: a ruined fort on its summit is traditionally called Macbeth's Castle. 1012 feet (308 meters).
- dunstable — John, c1390–1453, English composer.
- duobinary — denoting a communications system for coding digital data in which three data bands are used, 0, +1, –1
- duodenary — duodecimal.
- duplation — multiplication by two; doubling.
- duplicand — the twofold increase of feu-duty for the period of a year, or the feu-duty paid, as occasioned at specific times
- duplicate — a copy exactly like an original.
- duralumin — an alloy of aluminum that is 4 percent copper and contains small amounts of magnesium, manganese, iron, and silicon: used for applications requiring lightness and strength, as in airplane construction.
- durations — Plural form of duration.
- dust ball — Chiefly Northern and North Midland U.S. a ball or roll of dust and lint that accumulates indoors, as in corners or under furniture.
- dust bath — the action of a bird of driving dust into its feathers, which may dislodge parasites
- dust cart — a garbage truck.
- dust head — a habitual user of angel dust.
- dustcarts — Plural form of dustcart.
- dutch cap — a woman's lace cap with triangular flaps, characteristic of Dutch national dress
- dutch lap — a method of laying shingles, slates, or the like, in which each shingle or slate overlaps those below and to one side and is itself overlapped by those above and to the other side.
- duty call — a visit made for reasons of obligation rather than for social reasons
- duty paid — on which duty has been paid
- duumviral — relating to duumvirs