| Noun | 1. | duplicate - something additional of the same kind; "he always carried extras in case of an emergency" | |
| 2. | duplicate - a copy that corresponds to an original exactly; "he made a duplicate for the files"computer backup, backup - (computer science) a copy of a file or directory on a separate storage device; "he made a backup in case the original was accidentally damaged or erased" copy - a secondary representation of an original; "she made a copy of the designer dress" match, mate - an exact duplicate; "when a match is found an entry is made in the notebook" | |
| Verb | 1. | duplicate - make or do or perform again; "He could never replicate his brilliant performance of the magic trick"replicate, copy - biology: reproduce or make an exact copy of; "replicate the cell"; "copy the genetic information" recapitulate - repeat stages of evolutionary development during the embryonic phase of life geminate, reduplicate - form by reduplication; "The consonant reduplicates after a short vowel"; "The morpheme can be reduplicated to emphasize the meaning of the word" reproduce - make a copy or equivalent of; "reproduce the painting" | |
| 2. | duplicate - duplicate or match; "The polished surface twinned his face and chest in reverse"correspond, gibe, jibe, match, tally, agree, fit, check - be compatible, similar or consistent; coincide in their characteristics; "The two stories don't agree in many details"; "The handwriting checks with the signature on the check"; "The suspect's fingerprints don't match those on the gun" | |
| 3. | duplicate - make a duplicate or duplicates of; "Could you please duplicate this letter for me?"reproduce - make a copy or equivalent of; "reproduce the painting" | |
| 4. | duplicate - increase twofold; "The population doubled within 50 years"redouble - double again; "The noise doubled and redoubled" geminate - arrange or combine in pairs; "The consonants are geminated in these words" manifold, multiply - combine or increase by multiplication; "He managed to multiply his profits" | |
| Adj. | 1. | duplicate - identically copied from an original; "a duplicate key"same - closely similar or comparable in kind or quality or quantity or degree; "curtains the same color as the walls"; "two girls of the same age"; "mother and son have the same blue eyes"; "animals of the same species"; "the same rules as before"; "two boxes having the same dimensions"; "the same day next year" | |
| 2. | duplicate - being two identicalmatched - going well together; possessing harmonizing qualities | |