duplicate

Meanings

1. 1
   noun

   An exact copy of something.

   I keep a duplicate of the key in case I lose the original.

2. 2
   verb

   To make an exact copy of something.

   Please duplicate this document and send a copy to each member.

3. 3
   verb

   To do something again that has already been done, often unnecessarily.

   You don't need to duplicate my efforts; I've already finished it.

4. 4
   adj

   Exactly the same as another; being a copy.

   This is a duplicate entry, so please delete one of them.

Common collocations

• duplicate key Adjective + noun

PIE word *dwóh₁ Borrowed from Latin duplicātus, perfect passive participle of duplicō, see -ate.

Topics