How to say "fusion" in Japanese

• フュージョンCommon
  nounCovers the loanword senses of 'fusion', especially the jazz-fusion music genre and fusion cuisine. It is not the usual choice for fusing or merging of things in general; for those meanings use a native word.
• 融合ゆうごうCommon
  suru verb, intransitive verb, no-adjectiveThe fusing or blending of two or more things into one, such as cultures, styles, or ideas, and also nuclear fusion. This is the default word for 'fusion' in the sense of things merging together harmoniously.
  第だい３の問題点もんだいてんは、エメットが自分じぶんの理論りろんとデザインの現実げんじつの融合ゆうごうを図はかったということである。↗

  The third point to make is that Emmet attempted to harmonize his theory with the reality of designing.
• 溶融ようゆうCommon
  noun, suru verb, intransitive verbFusion in the physical sense of melting, as when a substance is turned molten by heat, as in metallurgy or geology. It does not cover the blending of cultures or the merging of organizations.
• 合同ごうどうJLPT N2approx.Common
  noun, suru verb, transitive verb, intransitive verbUnion, combination, or incorporation, typically of organizations or groups joining together. It is seldom the word you want for 'fusion' itself; it is really about things being combined or united into one body.
• 合併がっぺいJLPT N1approx.Common
  noun, suru verb, transitive verb, intransitive verbA merger or amalgamation of companies, towns, or similar entities. Use this when 'fusion' refers to two organizations combining into one, not for melting or for the blending of styles or cultures.
  ２社しゃは合併がっぺいを計画けいかくしている。↗

  The two companies plan to unite.

Use 「フュージョン」 for the music or cuisine sense, 融合 for blending or fusing of things, 溶融 for physical melting, and 合同 or 合併 for unions or mergers of organizations.

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

• フュージョンfusion
• 融合ゆうごうagglutination
• 溶融ようゆうmelting
• 合同ごうどうcombination
• 合併がっぺいmerger (of companies, towns, etc.)
• 融着ゆうちゃくfusion
• 融解ゆうかいmelting
• 癒合ゆごうagglutination
• 溶解ようかいmelting