How to say "acknowledge" in Japanese

Choosing the right word
  • 肯定応答こうていおうとう
    nounCovers 'acknowledge' as a positive reply confirming receipt of a message or signal, chiefly in technical and computing contexts; it is less common and rarely the word for acknowledging a person or fact.
  • 信認しんにん
    noun, suru verbCorresponds to 'acknowledge' in the sense of formally recognizing or admitting something, alongside 'acceptance' and 'admission'; as a less common word, it suits formal or legal-style recognition rather than everyday acknowledgment.
  • 諒とするりょうとする
    expression, suru verbCovers 'acknowledge' in the sense of understanding and accepting a stated matter, as in formal documents or correspondence ('the above is acknowledged'); it carries a written, formal nuance.
  • nounA loanword used as the direct equivalent of 'acknowledge', especially for the technical acknowledgment signal in data communication; it is less common and largely limited to that specialized use.
  • 諒するりょうする
    suru verb (irregular), transitive verbMeans 'to acknowledge, understand, and appreciate' a matter, much like 諒とする, in formal written contexts; use it when acknowledging the content of a statement or request.

For 'acknowledge', choose by sense: technical acknowledgment signals use 肯定応答 or 「アクノリッジ」, formal written acceptance of facts uses 「諒とする」 or 「諒する」, and 信認 covers formal recognition or admission.

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

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