| noun | the act of making copies “Gutenberg's reproduction of holy texts was far more efficient” |
| noun | (genetics) the process whereby DNA makes a copy of itself before cell division |
| noun | a quick reply to a question or remark (especially a witty or critical one) “it brought a sharp rejoinder from the teacher” |
| noun | (law) a pleading made by a plaintiff in reply to the defendant's plea or answer |
| noun | the repetition of a sound resulting from reflection of the sound waves “she could hear echoes of her own footsteps” |
| noun | copy that is not the original; something that has been copied |
| noun | the repetition of an experiment in order to test the validity of its conclusion “scientists will not believe an experimental result until they have seen at least one replication” |
| reproduce | verb | make a copy or equivalent of |
| replicate | verb | reproduce or make an exact copy of |
| retort | verb | answer back |
| return | verb | answer back |
| riposte | verb | answer back |
| come back | verb | answer back |
| counter | verb | speak in response |
| echo | verb | call to mind |
| reverberate | verb | ring or echo with sound |