duplicate

Duplicate describes something that's an exact copy. If you tend to accidentally lock yourself out of your car, it's a good idea to carry a duplicate key with you just in case.

The word duplicate is useful when you're talking about a copy of something, like a duplicate of your birth certificate that you keep in a file, or a duplicate driver's license that you apply for after losing the original one. The verb duplicate is pronounced differently, with a long a sound, and it means to make a copy of or to multiply times two. The Latin root, duplicatus, means "to double."

Definitions of duplicate
1

n a copy that corresponds to an original exactly

“he made a duplicate for the files”
Synonyms:
duplication
Types:
backup, computer backup
(computer science) a copy of a file or directory on a separate storage device
counterpart, similitude, twin
a duplicate copy
match, mate
an exact duplicate
Type of:
copy
a thing made to be similar or identical to another thing

n something additional of the same kind

Synonyms:
extra
Type of:
artefact, artifact
a man-made object taken as a whole

adj being two identical

Synonyms:
matching, twin, twinned
matched
going well together; possessing harmonizing qualities

adj identically copied from an original

“a duplicate key”
Synonyms:
same
closely similar or comparable in kind or quality or quantity or degree

v duplicate or match

Synonyms:
parallel, twin
Type of:
agree, check, correspond, fit, gibe, jibe, match, tally
be compatible, similar, or consistent; coincide in their characteristics

v make a duplicate or duplicates of

“Could you please duplicate this letter for me?”
Type of:
reproduce
make a copy or equivalent of

v make or do or perform again

Synonyms:
double, reduplicate, repeat, replicate
Types:
copy, replicate
reproduce or make an exact copy of
recapitulate
repeat stages of evolutionary development during the embryonic phase of life
geminate, reduplicate
form by reduplication
Type of:
reproduce
make a copy or equivalent of

v increase twofold

Synonyms:
double
Types:
redouble
double again
geminate
arrange or combine in pairs
Type of:
manifold, multiply
combine or increase by multiplication

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