How to say "understood" in Japanese

Choosing the right word
  • interjectionAn abbreviated internet-slang acknowledgment — a clipping of 了解 — serving as a quick 'understood' or 'OK' in online chats; keep it to casual messaging, as it does not suit formal writing or speech.
  • interjectionInternet slang for 'got it' or 'OK'; a playful set phrase used in online banter, not something to reach for in ordinary speech or writing.
  • expressionA folksy spoken reply meaning 'got it!' or 'all right!', cheerfully agreeing to a request or order; usually written in kana alone, and less common than a neutral acknowledgment.
  • interjectionA loanword of English 'roger', used to acknowledge an instruction radio-operator style; it covers 'understood' in that casual, radio-flavored sense rather than in neutral prose.
  • 了解済みりょうかいずみ
    no-adjectiveNot the conversational reply 'Understood!' but a written expression meaning something has already been accepted or understood; it fits notices, records and business writing better than speech.
    明日あす会合かいごうがあるということは了解りょうかい済ずみだ。↗
    It is accepted that we'll have a meeting tomorrow.

These all express the acknowledgment 'understood': 「りょ」 and 「おかのした」 are internet slang, 「がってんだ」 a folksy spoken reply, 「ラジャ」 a radio-style 'roger', and 「了解済み」 a written word for something already accepted or understood.

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

Japanese equivalents
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