The term WRITE BACK is a phrase used to describe the act of responding to a message or request. The crossword solutions for this term are ANSWER (6 letters), REPLY (5 letters), RESPOND (7 letters), and RSVP (4 letters). Each of these words can be used to indicate that a person has taken the time to RESPOND to a message or request. ANSWER implies that the response is direct and to the point, while REPLY suggests that the response is more conversational in nature. RESPOND implies that the response is more detailed and thorough, while RSVP implies that the response is an acceptance or rejection of an invitation.