〜とあいまって

Meaning

「あいまって」 is written 「相まって」, meaning "acting on each other." Indicates that two elements combine to produce an even greater effect. A stiff expression describing a synergistic effect.

Examples

彼の才能は、たゆまぬ努力とあいまって大輪の花を咲かせた。 His talent, combined with relentless effort, blossomed magnificently.
好天と相まって、祭りは例年以上の人出となった。 Combined with the fine weather, the festival drew even more visitors than usual.