How to say "lesson" in Japanese

Choosing the right word
  • 授業じゅぎょうJLPT N5approx.Common
    noun, suru verb, intransitive verbThe usual word for a lesson or class at school, taught by a teacher to students. Use this for classroom instruction of any academic subject.
    それは授業じゅぎょうの終おわりだった。↗
    That was the end of the class.
  • レッスンJLPT N1approx.Common
    nounA lesson in the sense of private or paid instruction, typically in skills such as music, dance, or languages. This is the loanword you want for piano lessons and the like.
    このレッスンはやさしい事ことが分わかるでしょう。↗
    You will find this lesson easy.
  • 課かJLPT N3approx.Common
    noun, noun (suffix)A lesson as a numbered unit or chapter in a textbook or course of study, such as Lesson 5. It refers to the unit itself, not the act of teaching.
    私は1時間じかんではその課かを全部ぜんぶは理解りかいできない。↗
    I can't absorb all of the lesson in an hour.
  • 教訓きょうくんJLPT N1approx.Common
    noun, suru verb, transitive verbA lesson in the figurative sense of something learned from experience, a moral or precept drawn from events. Use this for phrases like learning a lesson from a mistake.
    実例じつれいは教訓きょうくんにまさる。↗
    Example is better than precept.
  • 示ししめしCommon
    nounA lesson in the sense of an example set for others, as in setting a bad example. It is a marginal match for 'lesson' and is really about exemplary behavior or discipline.

Use 授業 for school classes, 「レッスン」 for private instruction in skills like music, 課 for a unit in a textbook, 教訓 for a lesson learned from experience, and 「示し」 for setting an example to others.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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