甲斐がある かいがある to be effective Meanings also 甲斐が有る expression, godan verb to be effective; to be fruitful; to be worthwhile; to be worth; to be rewarded; to pay off Its kanji 甲 コウ、カン · きのえ armor, high (voice), A grade, first class, former, instep, carapace 斐 ヒ、イ beautiful, patterned In sentences Furigana 苦心くしんの甲斐かいがあった。 That was well worth the trouble. #179528 頑張がんばった甲斐かいがあった。 It was worth the effort. #11839582 頑張がんばった甲斐かいがあります。 It was worth all the effort. #11839583