甲斐
1
efecto;resultado;valor;provecho
1
result (that makes an act worthwhile);worth (in doing something);value;effect;use;benefit;avail
苦心の甲斐があった。
That was well worth the trouble.
Other forms
詮 【かい】 (rarely used kanji form) · 効 【かい】 (rarely used kanji form)