Definition of in duplicate
- We were required to fill out the paperwork in duplicate.
- Please send the contract in duplicate.
: consisting of or existing in two corresponding or identical parts or examples
: being the same as another
: to make double or twofold
: to make a copy of
: to produce something equal to
: either of two things exactly alike and usually produced at the same time or by the same process
: an additional copy of something (such as a book or stamp) already in a collection
: one that resembles or corresponds to another : counterpart
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