| 門 | かど, もん | gate; branch of learning based on the teachings of a single master; (biological) division; counter for cannons |
| 部門 | ぶもん | class, group, category, department, field, branch |
| 専門 | せんもん | speciality, specialty, subject of study, expert |
| 専門家 | せんもんか | specialist |
| 専門学校 | せんもんがっこう, せんもんガッコウ, せんもんガッコ | vocational school, technical school |
| 名門 | めいもん | noted family, noble family |
| 入門 | にゅうもん | primer, manual, entering an institute, introduction to |
| 専門店 | せんもんてん | specialist shops |
| 板門店 | はんもんてん | Panmunjon |
| 専門的 | せんもんてき | technical (e.g. discussion), exclusive, professional |
