The noun response has 6 senses (first 5 from tagged texts)
1. (11) response -- (a result; "this situation developed in response to events in Africa")
2. (11) reaction, response -- (a bodily process occurring due to the effect of some foregoing stimulus or agent; "a bad reaction to the medicine"; "his responses have slowed with age")
3. (6) answer, reply, response -- (a statement (either spoken or written) that is made in reply to a question or request or criticism or accusation; "I waited several days for his answer"; "he wrote replies to several of his critics")
4. (4) reception, response -- (the manner in which something is greeted; "she did not expect the cold reception she received from her superiors")
5. (1) response -- (a phrase recited or sung by the congregation following a versicle by the priest or minister)
6. reply, response -- (the speech act of continuing a conversational exchange; "he growled his reply")