How to say "unite" in Japanese

• 合うあうJLPT N4approx.Common
  godan verb, intransitive verbCovers 'unite' in the sense of things coming together or merging of their own accord, often meeting or fitting well. Suited to describing elements that come into harmony or join naturally rather than being combined by someone.
  このチョッキは前まえが合あわない。↗

  This waistcoat won't meet at the front.
• 合わさるあわさるCommon
  godan verb, intransitive verbCovers 'unite' as separate things being joined or put together into one whole. Best when distinct parts or layers come together and combine, whether naturally or as a result of being brought together.
  しかもなお、石いしの大おおきいブロックが非常ひじょうにぴったりと合あわさっているので、ブロックの間あいだにナイフの先さきを差し込さしこむことができない。↗

  And yet the large blocks of stone are fitted together so closely that you cannot put in the point of a knife between them.
• 合わせるあわせるJLPT N3approx.Common
  ichidan verb, transitive verbCovers 'unite' as the deliberate act of joining things together or combining them. Typical when a person actively brings two or more things into contact, lines them up, or adds figures up.
  ３人にんは合あわせて５０ポンド持もっていた。↗

  The three men had £50 between them.
• 合わすあわすJLPT N1approx.Common
  godan verb, transitive verbShares the senses of joining together, uniting, and combining with 合わせる, and is used for the same deliberate joining or adding-up actions. In practice, however, 合わせる is the form usually encountered.
  彼かれはその破片はへんをくっつけ合あわした。↗

  He stuck the broken pieces together.

Use 「合う」 for things naturally coming together or merging, 「合わさる」 for separate things being joined into one, and 「合わせる」 or 「合わす」 for actively joining, combining, or adding things together.

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

• 合うあうto come together
• 合わさるあわさるto join
• 統べ合わせるすべあわせるto bring together
• 合するがっするto join together
• 合すがっすto join together
• 合わせるあわせるto join together
• 合わすあわすto join together
• 統べるすべるto integrate
• 組むくむto unite
• 結ぶむすぶto unite (with)