Translation guide
The English word "lesson" covers several distinct concepts in Japanese. The most common equivalent is 授業 (jugyō) for a class or period of instruction. For a lesson as a unit in a textbook or a moral lesson, different words are used. This guide breaks down the main meanings and their natural Japanese expressions.
A scheduled time of teaching, typically in a school or course setting.
The standard word for a class or lesson in an academic context. It refers to the entire period of instruction.
今日は数学の授業があります。
I have a math lesson today.
授業は9時に始まります。
The lesson starts at 9 o'clock.
Loanword from English, commonly used for private lessons, music lessons, or skill-based instruction (e.g., piano lesson, driving lesson). Less common for regular school classes.
毎週ピアノのレッスンを受けています。
I take a piano lesson every week.
Refers to a course or series of lectures, often in adult education or specialized topics. More formal than 授業.
この講座は全10回です。
This course consists of 10 lessons.
A specific section or chapter designed to teach a particular topic.
Used for numbered lessons or chapters in textbooks, especially language textbooks. Often combined with a number (e.g., 第1課 = Lesson 1).
今日は第5課を勉強します。
Today we will study Lesson 5.
この課の文法は難しいです。
The grammar in this lesson is difficult.
Also used for textbook units, especially in language learning materials. Interchangeable with 課 in many contexts.
Something learned, often from a mistake or life experience, that teaches a principle.
A lesson in the sense of a moral or teaching point derived from an experience. Often used in phrases like 教訓を得る (to learn a lesson).
その失敗から大切な教訓を得た。
I learned an important lesson from that failure.
これは良い教訓になった。
This was a good lesson for me.
A common phrase meaning "it was a good learning experience" or "I learned a lot from it." Used for both positive and negative experiences.
今回の失敗はいい勉強になった。
This failure was a good lesson.
An experience that serves as a warning or example to prevent future misbehavior.
To teach someone a lesson by making them realize their mistake, often through harsh experience. Can be used in the passive form 思い知らされる.
彼に自分の間違いを思い知らせてやった。
I taught him a lesson about his mistake.
Idiomatic phrase meaning "to teach someone a lesson" in a punitive sense, often implying revenge or showing one's strength.
今度こそ目に物見せてやる。
I'll teach you a lesson this time.
A passage from scripture read during a religious service.
Specifically refers to a Bible reading or lesson in a Christian context. The word 朗読 means reading aloud.
今日の礼拝では、ルカによる福音書の朗読がありました。
In today's service, there was a reading from the Gospel of Luke.
授業 (jugyō) is the general term for a class or lesson in school. レッスン (ressun) is used for private or skill-based lessons (piano, driving, etc.) and also for textbook units. 課 (ka) is specifically a numbered lesson in a textbook. Use 授業 for "I have a lesson now," レッスン for "I take piano lessons," and 課 for "Turn to Lesson 5."
The English phrase "learn a lesson" (from an experience) is not directly translated as 授業を学ぶ. Use 教訓を得る (kyōkun o eru) or いい勉強になる (ii benkyō ni naru) instead.
レッスン3の単語を覚えてください。
Please memorize the vocabulary from Lesson 3.