dumb

a.哑的；沉默的；笨的

duel, duellist, duenna, duet, duff, duffer, duffle (also duffel), duffle bag, duffle-coat, dug, dug-out, duke, dukedom, dulcet, dulcimer, dull, dullard, dullness, dully, duly, dumb show, dumb waiter, dumb-bell, dumbfound (also dumfound), dumbly, dumbness, dumdum, dummy, dummy run, dump, dumper, dumpiness, dumping, dumpling, dumps, dumpy, dun, dunce, dunce's cap, dunderhead,