A questioner is the person who is asking a question. You meet the word most in a public setting: a talk, a class, a news show, a meeting. One person speaks, then a questioner in the room (or on the phone, or in the chat) gets a turn to ask. It names the role, not the question itself.

A questioner是 is the person who is asking a question正在發問的那個人。You meet the word most你最常在公開場合看到這個字 in a public setting: a talk演講、a class課堂、a news show新聞節目、a meeting會議。One person speaks一個人先講, then然後 a questioner in the room (or on the phone, or in the chat)現場（或電話裡、聊天室裡）的questioner gets a turn to ask就輪到發問。It它 names the role指的是這個角色, not the question itself不是問題本身。

It sounds a little more formal than “the person who asked” — hosts and news writers like it (“our next questioner…”). It is a neutral word, not rude and not a joke.

It它 sounds a little more formal than "the person who asked"聽起來比「the person who asked」正式一點 — hosts and news writers主持人和新聞撰稿人 like it很喜歡用 ("our next questioner…")（像「our next questioner…」）。It它 is a neutral word是個中性的字, not rude and not a joke不帶貶意也不是玩笑話。

Though actually, the same spelling can also mean the person doing a long, hard set of questions, as in an interview, but everyday English often says interviewer or just the police / the lawyer instead. In class, if you raise your hand, you are the questioner for that moment.

Though actually不過事實上, the same spelling同樣的拼法 can also mean the person doing a long, hard set of questions也可以指做長時間、密集提問的那個人, as in an interview像面試那種情境, but everyday English但日常英文 often says interviewer instead常常改說interviewer, or just the police / the lawyer或直接說the police／the lawyer。In class在課堂上, if you raise your hand如果你舉手, you are the questioner for that moment那一刻你就是questioner。