‘對答’ literally combines 對 (duì, 'to face, to match, to respond') and 答 (dá, 'to answer'), forming a compound noun meaning 'dialogue' or 'Q&A' — especially formal, structured, or reciprocal verbal exchange. It emphasizes mutual, back-and-forth interaction rather than one-sided speech. While it can describe everyday conversation, it’s more commonly used in contexts like classroom Q&A sessions, interviews, diplomatic exchanges, or scripted dialogues where responses directly follow questions.

The term carries a slightly literary or formal register; you’ll rarely hear it in casual chats among friends (where people say 聊天 or 问答 instead). It often appears in written Chinese — textbooks, news reports on official meetings, or educational materials — and may imply clarity, precision, and turn-taking. Unlike the verb phrase 對話 (duìhuà), which means 'to converse', 對答 functions almost exclusively as a noun and stresses the question-answer dynamic itself.