Verb (5-dan, す, transitive)
1. to listen repeatedly; to listen again
2. to ask a question in return
尋ねたのに逆に聞き返されて戸惑った。I asked a question, but was thrown when they asked me one back instead.
3. to ask again; to ask for a repeated explanation
意味が分からず、聞き返す。Not understanding the meaning, I ask again.