Meaning

1. An answer or reply, or something in the nature of an answer or reply.
2. The act of responding or replying; reply: as, to speak in response to a question.
3. An oracular answer.
4. A verse, sentence, phrase, or word said or sung by the choir or congregation in sequence or reply to the priest or officiant.
5. A versicle or anthem said or sung during or after a lection; a respond or responsory.
6. A reply to an objection in formal disputation.
7. An online advertising performance metric representing one click-through from an online ad to its destination URL.
8. A reaction to a stimulus or provocation.