Duplicate

/ˈduːplɪkət/

Meaning & Definition

noun
A copy that corresponds to an original exactly.
Please send me a duplicate of the report for my records.
A copy or reproduction of something.
The librarian found an old duplicate of the book in the archives.
verb
To make an exact copy of something.
The technician will duplicate the hard drive for backup purposes.
To repeat or reproduce.
She tried to duplicate the experiment to confirm the results.
adjective
Being an exact copy of another.
He received a duplicate key for his apartment.
Having or being two identical parts.
The design had a duplicate section that needed to be modified.

Etymology

From Latin 'duplicare', meaning 'to double'.

Common Phrases and Expressions

duplicate efforts
To do the same work or task that has already been done.
duplicate keys
Keys that have been copied from an original to allow access to the same locks.
duplicate ticket
A second version of a ticket that allows entry to an event.

Related Words

copy
An exact reproduction of something.
replicate
To make an exact copy of something, especially in science or technology.
reproduce
To make a copy or representation of something.

Slang Meanings

A person or thing that is a bad copy of the original.
That movie was just a duplicate of the first one, not worth watching.
An imposter or someone who pretends to be someone else.
He's such a duplicate of that famous singer, it's kind of funny.