Synonym: copy, double, repeat, reproduce. Similar words: replicate, implicate, triplicate, implicated, complicated, duplicity, duplicitous, implication. Meaning: ['djuːplɪkət] 
n. 1. something additional of the same kind 2. a copy that corresponds to an original exactly. v. 1. make or do or perform again 2. duplicate or match 3. make a duplicate or duplicates of 4. increase twofold. adj. 1. identically copied from an original 2. being two identical.
n. 1. something additional of the same kind 2. a copy that corresponds to an original exactly. v. 1. make or do or perform again 2. duplicate or match 3. make a duplicate or duplicates of 4. increase twofold. adj. 1. identically copied from an original 2. being two identical. 
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1, We made a duplicate of the key.
2, Parenthood is an experience nothing else can duplicate.
3, Is this a duplicate or the original?
4, We'll have a duplicate key cut .
5, Your jacket's a duplicate of mine.
6, His task will be to duplicate his success overseas here at home.
7, You'll just have to duplicate your performance.
8, Copies of the proposal should be sent in duplicate.
9, The manager asks the secretary to duplicate the document.
10, He let himself in with a duplicate key.
11, Can you duplicate the key for me?
12, She kept both the duplicate and the original.
13, We have duplicate keys for the front door.
14, We don't want staff to duplicate each other's work.
15, Charles scored again,(http://sentencedict.com/duplicate.html) with an exact duplicate of his first goal.
16, The contract is prepared in duplicate, so that both parties can sign it.
17, The thieves were equipped with duplicate keys to the safe.
18, A duplicate copy should be made for the county record office.
19, Enclosed is our contract No. 345 in duplicate, of which please return us one copy, duly countersign.
20, Scientists raced to duplicate Fleishmann's experiments.
21, The elimination of duplicate support positions.
22, This was a reserve duplicate of those now running.
23, It's a good idea to keep duplicate files on floppy disk.
24, I lost the original form so they sent me a duplicate.
25, He rolled off some extra copies of the document on the duplicate machine.
26, I'm on my way to Switzerland, but I've lost my card. I'vegot to get a duplicate.
27, Smaller components fall together into the mould in such a way that a duplicate of the mould is made.
28, Such a request would be unusual in public law applications as it would duplicate the role of the guardian ad litem.
29, Give the plant a lot of bright light, to duplicate outdoor conditions.
30, In museum culture the original physical artefact is venerated at the expense of a replica, duplicate, reconstruction, or hologram.
More similar words: replicate, implicate, triplicate, implicated, complicated, duplicity, duplicitous, implication, complication, supplication, application, delicate, delicatessen, replica, applicable, inexplicable, simplification, publication, exemplification, abdicate, indicate, dedicate, syndicate, predicate, intricate, extricate, eradicate, dedicated, fabricate, vindicate.