The verb respond has 3 senses (first 3 from tagged texts)
1. (33) react, respond -- (show a response or a reaction to something)
2. (7) answer, reply, respond -- (reply or respond to; "She didn't want to answer"; "answer the question"; "We answered that we would accept the invitation")
3. (1) respond -- (respond favorably or as hoped; "The cancer responded to the aggressive therapy")