serve in two jobs or positions of responsibility concurrently, double as A and B

important matter / requirement, necessary condition

(pathology) blood clot; thrombus

to rise up / rainbow / to fall

(obsolete, orthography) Synonym of 半濁点 (handakuten) / (typography) an emphasis point, a dot or similar mark attached to a character to display emphasis

unsettled question

rock paper scissors (popular children's game)

to play rock paper scissors (popular child's game)

(obsolete) Alternative spelling of メリケン

Short for 日本漢字能力検定 (Nihon Kanji Nōryoku Kentei).