noun, noun or participle which takes 'suru', intransitive verb
becoming a pupil; entering discipleship; beginning training
Used as 入門する for formally starting under a teacher, school, dojo, artistic tradition, or similar institution of training. It often implies joining as a beginner or disciple rather than simply enrolling in an ordinary class.
彼は十歳で空手道場に入門した。
He entered a karate dojo as a pupil at the age of ten.
有名な
I became a pupil of a famous potter and learned from the basics.
noun
introduction; primer; beginner's guide
Common in titles of books, courses, articles, and guides for beginners, as in 日本語入門 or 統計学入門. Here it means an introductory treatment of a subject, not literally entering a school.
まずは統計学入門を読んでみよう。
First, try reading an introduction to statistics.
初心者向けのプログラミング入門講座に申し込んだ。
I signed up for a beginner's programming course.
noun, noun or participle which takes 'suru', intransitive verb
entering through a gate; gate entry
Literal use referring to entering a premises through a gate. It is more likely in administrative, security, factory, campus, or facility-entry contexts than in everyday conversation.
工場では入門時に身分証の提示が必要です。
At the factory, you must show ID when entering through the gate.
車両の入門は正門からお願いします。
Vehicles should enter through the main gate.