Defn: A composition for two performers, whether vocal or instrumental.

DUETTINO
Du`et*ti"no, n. Etym: [It ., dim. fr. duetto a duet.]

Defn: A duet of short extent and concise form.

DUETTO
Du*et"to, n. Etym: [It., fr. It & L. duo two. See Two.]

Defn: See Duet.

DUFF
Duff, n. Etym: [From OE. dagh. . See Dough.]

1. Dough or paste. [Prov. Eng.] Halliwell.

2. A stiff flour pudding, boiled in a bag; — a term used especially by seamen; as, plum duff.

DUFFEL
Duf"fel, n. Etym: [D. duffel, from Duffel, a town not far from
Antwerp.]

Defn: A kind of coarse woolen cloth, having a thick nap or frieze.
[Written also duffle.]
Good duffel gray and flannel fine. Wordsworth.