| Level 4 vocabulary |
| 質問 | (n,vs) question/ inquiry/ (P) |  |
| 問題 | (n) problem/ question/ (P) |  |
| Level 2 vocabulary |
| 学問 | (n) scholarship/ study/ learning/ (P) |  |
| 疑問 | (n) question/ problem/ doubt/ guess/ (P) |  |
| 問い | (n) question/ query/ (P) |  |
| 問い合わせ | (n) enquiry/ ENQ |  |
| 訪問 | (n,vs) call/ visit/ (P) |  |
| 〜問 | problem/ question |  |
| 問答 | (n) questions and answers/ dialogue/ (P) |  |
| Level 1 vocabulary |
| 問い合わせる | (v1) to enquire/ to seek information/ (P) |  |
| 問う | (v5u-s) (1) to ask/ to question/ to charge (i.e. with a crime)/ to accuse/ (2) without regard to (with n |  |
| 問屋 | (n) wholesale store/ (P) |  |