| Word | Definitions | Synonyms |
|---|---|---|
| duplex | (verb) change into a duplex | - |
| duplicate | (verb) increase twofold | Synonyms: double |
| (verb) make or do or perform again | Synonyms: double, reduplicate, repeat, replicate | |
| (verb) make a duplicate or duplicates of | - | |
| (verb) duplicate or match | Synonyms: parallel, twin |