I. ˈdü-pli-kət also ˈdyü- adjective
Etymology: Middle English, from Latin duplicatus, past participle of duplicare to double, from duplic-, duplex
Date: 15th century
1. : consisting of or existing in two corresponding or identical parts or examples
duplicate invoices
2. : being the same as another
duplicate copies
II. ˈdü-pli-ˌkāt also ˈdyü- verb
( -cat·ed ; -cat·ing )
Date: 15th century
transitive verb
1. : to make double or twofold
2.
a. : to make a copy of
a cell duplicate s itself when it divides
b. : to produce something equal to
trying to duplicate last year's success
c. : to do over or again often needlessly
duplicated effort
intransitive verb
: to become duplicated ; also : repeat
• du·pli·ca·tive -ˌkā-tiv adjective
III. -kət noun
Date: 1532
1.
a. : either of two things exactly alike and usually produced at the same time or by the same process
b. : an additional copy of something (as a book or stamp) already in a collection
2. : one that resembles or corresponds to another : counterpart
3. : two identical copies — used in the phrase in duplicate
Synonyms: see reproduction