How to say "exposition" in Japanese

Choosing the right word
  • 説明せつめいJLPT N4approx.Common
    noun, suru verb, transitive verbThe all-purpose word for the explanation sense: use it when 'exposition' means a clear account that presents facts, ideas, or how something works. It does not refer to public exhibitions.
    私に規則きそくを説明せつめいして下ください。↗
    Please explain the rule to me.
  • 解説かいせつJLPT N2approx.Common
    noun, suru verb, transitive verbAn explanation delivered as commentary: elucidating a work or topic in depth. Choose it when 'exposition' suggests a guided, explanatory treatment rather than a plain account.
    彼かれの解説かいせつがわかった人ひとはほとんどいなかった。↗
    Few people understood his comment.
  • nounThe loanword for the event sense: a large public exhibition, an expo. Use it only for such events, never for the explanation sense of 'exposition'.
    I learned about your portable copier at the Tokyo-Office '97 Expo.
  • 講釈こうしゃくCommon
    noun, suru verb, transitive verbSeldom the word you want for 'exposition': it really means lecturing on a text or phrase and expounding its meaning to listeners. Its 'exposition' gloss reflects that expounding sense, not explanation in general.
  • 博覧会はくらんかいCommon
    nounThe event sense of 'exposition': a large public exhibition or fair where things are displayed to visitors. Unlike the loanword エキスポ, it also covers exhibitions and fairs generally, and it never means an explanation.
    委員長いいんちょうは博覧会はくらんかいの会場かいじょうを見みつけた。↗
    The committee picked the site for the exhibition.

For 'exposition' as an explanation, choose 説明, or 解説 for commentary-style elucidation; for the large public exhibition sense choose 博覧会 or the loanword 「エキスポ」; 講釈 fits only lecture-like expounding of a text.

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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