DUPLICATE
duplicate, matching, twin, twinned
(adjective) being two identical
duplicate
(adjective) identically copied from an original; “a duplicate key”
duplicate, duplication
(noun) a copy that corresponds to an original exactly; “he made a duplicate for the files”
extra, duplicate
(noun) something additional of the same kind; “he always carried extras in case of an emergency”
double, duplicate
(verb) increase twofold; “The population doubled within 50 years”
duplicate, reduplicate, double, repeat, replicate
(verb) make or do or perform again; “He could never replicate his brilliant performance of the magic trick”
duplicate
(verb) make a duplicate or duplicates of; “Could you please duplicate this letter for me?”
twin, duplicate, parallel
(verb) duplicate or match; “The polished surface twinned his face and chest in reverse”
Source: WordNet® 3.1
Etymology
Adjective
duplicate (not comparable)
Being the same as another; identical.
(games) In which the hands of cards, tiles, etc. are preserved between rounds to be played again by other players.
Verb
duplicate (third-person singular simple present duplicates, present participle duplicating, simple past and past participle duplicated)
(transitive) To make a copy of.
(transitive) To do repeatedly; to do again.
(transitive) To produce something equal to.
Synonyms
• (to make a copy of): double; see also duplicate
Noun
duplicate (countable and uncountable, plural duplicates)
One that resembles or corresponds to another; an identical copy.
(legal) 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.
A pawnbroker's ticket, which must be shown when redeeming a pledged item.
(uncountable) The game of duplicate bridge.
(uncountable) The game of duplicate Scrabble.
(botany, zoology) A biological specimen that was gathered alongside another specimen and represents the same species.
Synonyms
• reproduction
Source: Wiktionary
Du"pli*cate, a. Etym: [L. duplicatus, p. p. of duplicare to double,
fr. duplex double, twofold. See Duplex.]
Definition: Double; twofold. Duplicate proportion or ratio (Math.), the
proportion or ratio of squares. Thus, in geometrical proportion, the
first term to the third is said to be in a duplicate ratio of the
first to the second, or as its square is to the square of the second.
Thus, in 2, 4, 8, 16, the ratio of 2 to 8 is a duplicate of that of 2
to 4, or as the square of 2 is to the square of 4.
Du"pli*cate, n.
1. That which exactly resembles or corresponds to something else;
another, correspondent to the first; hence, a copy; a transcript; a
counterpart.
I send a duplicate both of it and my last dispatch. Sir W. Temple.
2. (Law)
Definition: 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. Burrill.
Du"pli*cate, v. t. [imp. & p. p. Duplicated; p. pr. & vb. n.
Duplicating.]
1. To double; to fold; to render double.
2. To make a duplicate of (something); to make a copy or transcript
of. Glanvill.
3. (Biol.)
Definition: To divide into two by natural growth or spontaneous action; as,
infusoria duplicate themselves.
Source: Webster’s Unabridged Dictionary 1913 Edition