くいあう

くいあう【食い合う】

1 〔かみ合う〕 ⇒かみあう.

2 〔建具などがぴったり合う〕 fit [join] together exactly; fit perfectly into the right slots.

3 〔相手の領分を侵しあう〕 (mutually) encroach 《on [upon]…》; infringe 《on [upon]…》; violate 《each other's territory》; tussle 《for influence, over territory》.

●〔選挙で〕 互いの地盤を食い合う tussle for power (in an electoral district); (try to) take over power from each other

・二人の候補は互いの票田を食い合う結果となった. The two candidates ended up eating into each other's constituencies.