1. verb /rɪˈplaɪ/
a) To give a written or spoken response, especially to a question, request, accusation or criticism; to answer.
Please reply to my letter.
"Sorry Im late," replied the student.
Syn: respond, answer, retort, answer back, react, rejoin, counter, return, revert, follow up, get back to
2. noun /rɪˈplaɪ/
b) Something given in reply.
Wikipedia foundation.