How to say "innovation" in Japanese

• イノベーションCommon
  nounCovers innovation in the sense of introducing new ideas, products, or methods; the direct loanword is used especially in business and technology talk about creative change.
• 革新かくしんJLPT N1approx.Common
  noun, suru verb, transitive verbCovers innovation as radical renewal — sweeping change to established systems, methods, or institutions — and also serves for 'reform'; it suggests bold, far-reaching change rather than a single new idea.
• 新機軸しんきじくCommon
  nounCovers innovation as a new departure or breakthrough — an original idea or approach opening a fresh direction rather than sweeping change; think of a new method that marks a milestone.
• 変革へんかくJLPT N1approx.Common
  noun, suru verb, transitive verb, intransitive verbSeldom the word you want for 'innovation' as a new idea or product; it really means deep transformation or sweeping change — reform or even revolution of a system or society.
  大統領だいとうりょうの演説えんぜつはアメリカ国民こくみんに変革へんかくをもたらした。↗

  The President's speech brought about a change in the American people.

Choose 「イノベーション」 for the loanword sense of introducing new ideas, especially in business and technology, 革新 for radical renewal of systems or methods, 新機軸 for a fresh new departure, and 変革 only for sweeping transformation, not innovation.

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

• イノベーションinnovation
• 革新かくしんreform
• 新機軸しんきじくinnovation
• 変革へんかくchange
• 一生面いちせいめんinnovation
• イノベーション創出イノベーションそうしゅつinnovation
• イノベinnovation
• 斬新性ざんしんせいinnovativeness