How to say "class" in Japanese

Choosing the right word
  • クラスJLPT N5approx.Common
    nounThe everyday word for a school class: the group of students taught together, or a class session you attend. Fits 'the whole class was quiet' or 'English class'.
    あなたはうちのクラスで歓迎かんげいされています。↗
    You are welcomed in our class.
  • 組くみJLPT N3approx.Common
    noun, noun (suffix)The class as the group of pupils assigned together at school — the unit you belong to, often numbered within a year. Use it for 'which class are you in?', not for the lesson.
    彼かれはその組くみの首席しゅせきだ。↗
    He is at the head of the class.
  • 授業じゅぎょうJLPT N5approx.Common
    noun, suru verb, intransitive verbClass or lesson as an activity: the scheduled teaching and learning itself. This is the word for having, attending, or skipping class, and for what a teacher does in the classroom.
    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.
  • 級きゅうJLPT N3approx.Common
    noun, counterMainly a school grade or year, or a rank. As 'class' it works only for ranked levels, and it is not the word for a group of students or a lesson.
    彼かれは10年ねん級きゅうに在学中ざいがくちゅうだ。↗
    He is in the tenth grade.
  • 階層かいそうJLPT N1approx.Common
    nounClass in the social sense: a stratum of society, as in 'social class' or 'the upper class'. Also a layer or level within a structure or hierarchy; never a school class.
    It is a literary work confronting the class problem of a consumer society.

Use 「クラス」 for a school class or session, 組 for the group of students you belong to, 授業 for class as a lesson or activity, 級 for grades and ranks, and 階層 for social class.

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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