A question-and-answer session; the exchange of questions and corresponding answers, typically at meetings, lectures, or events.
講演の後で質疑応答の時間がありますので、質問を用意してください。
There will be a Q&A session after the lecture, so please prepare your questions.
質疑応答で鋭い質問が出て、討論が白熱した。
A sharp question came up during the Q&A, and the discussion heated up.
会議の進行役は質疑応答を30分間に限ると告げた。
The meeting moderator announced that the Q&A would be limited to 30 minutes.