N2 Timing, Occasions, and Triggers

~を契機けいきに/~を契機けいきにして: meaning, usage and examples

~を契機けいきに/~を契機けいきにして means: triggered by... / taking... as an opportunity.

Updated 9 November 2026 · By the My Senpai team · Spotted a mistake? Tell us

Examples

1. この事故じこを契機けいきに、安全対策あんぜんたいさくが強化きょうかされた。

   Triggered by this accident, safety measures were strengthened.

2. 結婚けっこんを契機けいきにして、生活せいかつが変かわった。

   Getting married was a turning point that changed my life.

3. 駅えきの完成かんせいを契機けいきに、この町まちは大おおきく発展はってんした。

   The town developed greatly following the completion of the station.

4. 転職てんしょくを契機けいきにして、生活せいかつ習慣しゅうかんを見直みなおした。

   Changing jobs prompted me to rethink my daily habits.

When to use it

Use this to name an event that became the turning point or trigger for a significant change: 駅えきの完成かんせいを契機けいきに、この町まちは大おおきく発展はってんした (the town developed greatly following the station's completion). It is used for major changes in society, a company, a town or a person's life, viewed as a new stage.

Nuance

Formal and written; common in news, essays and reports. The change that follows is significant and lasting, not a small action. It is used for both good and bad triggers, but the result is usually presented as a new direction. を契機けいきとして is the stiffest form.

Compare

The difference from をきっかけに is mainly register. をきっかけに means the same but is neutral and everyday: 友達ともだちの誘さそいをきっかけにジョギングを始はじめた. を契機けいきに sounds formal and fits large changes: 事故じこを契機けいきに法律ほうりつが改正かいせいされた. を機きに is also formal and often a chosen chance: 退職たいしょくを機きに田舎いなかへ引ひっ越こした.

Tip: Think of を契機けいきに as the newspaper version of をきっかけに. In a chat with friends, use きっかけ.