vi to answer a defendant's plea.
2. reply ·vt to return for an answer.
3. reply ·vi to make a return in words or writing; to respond; to answer.
4. reply ·vi that which is said, written, or done in answer to what is said, written, or done by another; an answer; a response.
5. reply ·vi figuratively, to do something in return for something done; as, to reply to a signal; to reply to the fire of a battery.