Merriam-Webster's Dictionary and Thesaurus - Merriam-Webster [428]
du·bi·ous·ly adverb : in a manner expressive of doubt, hesitation, or suspicion
Synonyms
askance, distrustfully, mistrustfully, suspiciously—more at ASKANCE
dub·ni·um noun : a short-lived radioactive chemical element produced artificially
du·cal adjective : of or relating to a duke or dukedom
duc·at noun : a gold coin formerly used in various European countries
duch·ess noun 1 : the wife or widow of a duke
2 : a woman holding the rank of duke in her own right
duchy noun, plural duch·ies : the territory of a duke or duchess : DUKEDOM
1duck noun, plural ducks : any of various swimming birds related to but smaller than geese and swans
2duck verb 1 : to thrust or plunge under water
2 a : to lower the head or body suddenly : BOW
b : to make a sudden movement in a new direction : DODGE
3 : to evade a duty, question, or responsibility <~ the issue>
Synonyms
[1] dip, douse, dunk, immerse, souse, submerge—more at DIP
[2b] dodge, sidestep—more at DODGE
[3] avoid, dodge, elude, escape, eschew, evade, shake, shirk, shun—more at ESCAPE
3duck noun 1 : a durable closely woven usu. cotton fabric
2 plural : light clothes made of duck
duck·bill noun : PLATYPUS
duck·ling noun : a young duck
duck·pin noun 1 : a small bowling pin shorter and wider in the middle than a tenpin
2 plural but singular in construction : a bowling game using duckpins
duck sauce noun : a thick sweet sauce made with fruits and seasonings and used in Chinese cuisine
duct noun 1 : a tube or canal for conveying a bodily fluid
2 : a pipe or tube through which a fluid (as air) flows
— duct·less adjective
Synonyms
channel, conduit, leader, line, penstock, pipe, tube—more at PIPE
duc·tile adjective 1 : capable of being drawn out into wire or thread
2 : easily led : DOCILE
— duc·til·i·ty noun
ductless gland noun : an endocrine gland
duct tape noun : a cloth adhesive tape orig. designed for sealing certain ducts and joints
— duct tape verb
dud noun 1 plural : personal attire : CLOTHING
2 : one that fails completely; also : a bomb or missile that fails to explode
Synonyms
duds [1] apparel, attire, clothing, dress, raiment, wear—more at CLOTHING
[2] bummer, bust, catastrophe, debacle, failure, fiasco, fizzle, flop, lemon, loser, turkey, washout—more at FAILURE
dude noun 1 : a man who gives exaggerated attention to personal appearance : DANDY
2 : a city dweller; especially : an Easterner in the West
3 : a male human : GUY — sometimes used as an informal form of address
Synonyms
[1] buck, dandy, fop, gallant—more at DANDY
[3] buck, chap, fellow, gent, gentleman, guy, hombre, jack, joker, lad, male, man—more at MAN
dude ranch noun : a vacation resort offering activities (as horseback riding) typical of western ranches
dud·geon noun : a fit or state of indignation Synonyms huff, offense, peeve, pique, resentment, umbrage—more at PIQUE 1due adjective [ORIGIN: ME, fr. AF deu, pp. of dever to owe, fr. L debēre] 1 : owed or owing as a debt 2 : owed or owing as a right 3 : APPROPRIATE, FITTING 4 : SUFFICIENT, ADEQUATE 5 : being in accordance with some established rule, law, or principle <~ process of law> 6 : capable of being attributed — used with to <~ to negligence>