'DUP' definitions:

Definition of 'Dup'

From: GCIDE
  • Dup \Dup\ (d[u^]p), v. t. [Contr. fr. do up, that is, to lift up the latch. Cf. Don, Doff.] To open; as, to dup the door. [Obs.] --Shak. [1913 Webster]

Acronyms for 'dup'

From: V.E.R.A.
  • Distribution Unit Profile (MS, OSD, DU, MSIE)