navigation; especially sailing.

the Japanese language

being already reported / prior report

"collapse of the abdominal muscles": (informal, originally Internet slang) violent laughing from hilarity

"collapse of the tear glands": (informal, originally Internet slang) violent crying from sadness

(grammar) inclusive

(monarchy, Buddhism) an emperor who abdicates and becomes a monk; a monk emperor emeritus

(medicine) being polycystic; being multicystic

returning a virtuous deed

(only in compounds) a way of life proposed by Ninomiya Sontoku