N1 Standards and Accordance

~と相あいまって: meaning, usage and examples

~と相あいまって means: combined with... / coupled with...

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

Examples

1. 彼かれの才能さいのうが、努力どりょくと相あいまって、素晴すばらしい結果けっかを生うんだ。

   His talent, combined with hard work, produced wonderful results.

2. 寝不足ねぶそくと疲つかれが相あいまって、彼かれは倒たおれてしまった。

   Lack of sleep, coupled with fatigue, caused him to collapse.

3. 円えん安やすと好天こうてんが相あいまって、観光かんこう地ちはどこも人ひとであふれた。

   With the weak yen and good weather combined, tourist spots everywhere were packed.

4. 美うつくしい庭園ていえんが静しずけさと相あいまって、落おち着ついた雰囲気ふんいきを生うんでいる。

   The beautiful garden, combined with the quiet, creates a calm atmosphere.

When to use it

Says that two factors work together and strengthen each other to produce a result, good or bad. One factor is often the subject and the other is marked with と, or both are listed and followed by が相あいまって. Example: 才能さいのうが努力どりょくと相あいまって、成功せいこうにつながった (talent, combined with effort, led to success). Common in news, reviews and essays.

Nuance

Written and formal; in conversation people say と重かさなって or も手伝てつだって. Both factors are usually abstract or situational (weather, prices, mood, talent), not people. The result clause states a fact, not a wish or request.

Compare

と相あいまって stresses that two factors amplify each other: 好天こうてんと連休れんきゅうが相あいまって、人出ひとでが多おおかった. も手伝てつだって adds one extra cause to an existing one: 連休れんきゅうも手伝てつだって、人出ひとでが多おおかった. と同時どうじに only says two things happen at the same time, with no combined effect.

Tip: Think of 相あい as mutual: the two factors push each other. If you can say the two together produced the result, と相あいまって fits.