duplicate

Borrowed from Latin duplicātus, perfect passive participle of duplicō, see -ate.

Noun, adjective

• IPA^(key): /ˈd(j)uː.plɪ.kət/

• Audio (US):

  (file)

Verb

• IPA^(key): /ˈd(j)uː.plɪˌkeɪt/

• Audio (US):

  (file)

duplicate (not comparable)

1. Being the same as another; identical, often having been copied from an original.

   This is a duplicate entry.

2. (games) In which the hands of cards, tiles, etc. are preserved between rounds to be played again by other players.

   duplicate whist

   duplicate Scrabble

duplicate (third-person singular simple present duplicates, present participle duplicating, simple past and past participle duplicated)

1. (transitive) To make a copy of.

   If we duplicate the information, are we really accomplishing much?

   Can you duplicate this kind of key?

2. (transitive) To do repeatedly; to do again.

   You don't need to duplicate my efforts.

3. (transitive) To produce something equal to.

   He found it hard to duplicate the skills of his wife.

• (to make a copy of): double; see also Thesaurus:duplicate

• repeat

duplicate (countable and uncountable, plural duplicates)

1. One that resembles or corresponds to another; an identical copy.

   This is a duplicate, but a very good replica.

   • July 20, 1678, William Temple, letter to the Lord Treasurer

     I send a duplicate both of it and my last dispatch.

2. (law) An original instrument repeated; a document which is the same as another in all essential particulars, and differing from a mere copy in having all the validity of an original^[1]
3. A pawnbroker's ticket, which must be shown when redeeming a pledged item.

   Synonym: (archaic slang) tombstone

   • 1819, James Hardy Vaux, Memoirs of James Hardy Vaux, Vol. II, Chapter VI, p. 207:

     "Sir, I hope you will excuse what I am going to say; but having observed that you frequently pledge similar goods to these at our shop, which are afterwards taken out by other persons, I take for granted you are in the habit of selling the duplicates; […]"

4. (uncountable) The game of duplicate bridge.
   • 1999, Matthew Granovetter, Murder at the Bridge Table, page 6:

     The momentary madness which infects bridge players occurs frequently at rubber bridge and duplicate; and though it rarely results in murder, it often terminates marriages and close friendships […]

5. (uncountable) The game of duplicate Scrabble.
6. (botany, zoology) A biological specimen that was gathered alongside another specimen and represents the same species.
   • 2013, Aljos Farjon, Denis Filer, An Atlas of the World's Conifers: An Analysis of their Distribution, Biogeography, Diversity and Conservation Status, Koninklijke Brill, →ISBN, page 3:

     Each collection, which may be a unicate or several specimens as duplicates in several herbaria, constitutes a record in the Conifer Database.

• reproduction

• “duplicate”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

duplicate

1. inflection of duplicare:
   1. second-person plural present indicative
   2. second-person plural imperative

duplicate f pl

1. feminine plural of duplicato

duplicāte

1. second-person plural present active imperative of duplicō

duplicate

1. second-person singular voseo imperative of duplicar combined with te