dup

¹ American

[duhp] / dʌp /

verb (used with object)

Archaic.

dupped, dupping

to open.

dup. ² American

abbreviation

duplicate.

dup British

/ dʌp /

verb

archaic (tr) to open

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of dup

1540–50; contraction of do ¹ + up; cf. doff, don ²

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She urged the DUP MP to "do better".

From BBC • Jun. 7, 2026

DUP assembly member for north Belfast Brian Kingston called it an "utterly appalling" attack.

From BBC • Jun. 6, 2026

DUP MLA for Fermanagh and South Tyrone Deborah Erskine said the delays "have an impact upon motorists".

From BBC • May 23, 2026

Paul Frew, who is a DUP MLA as well as Stormont's justice committee chairman, said the review made for horrific reading.

From BBC • May 6, 2026

Sir Keir Starmer told the DUP leader he would ensure a review of the vetting process "covers all the relevant issues".

From BBC • Apr. 20, 2026

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023