to know through one's own experience

to have no way of knowing; to be completely ignorant of

to make known

(Classical Japanese, archaic, honorific) to know

God only knows

an unused item

(Japanese mythology) Kagutsuchi (the fire god, who, when he was born, burnt his mother 伊弉冉 (Izanami)'s genitals, injured her, caused her to spontaneously birth more gods from her vomit, and eventually killed her, which then caused him to be killed by his father 伊弉諾 (Izanagi))

Alternative spelling of モモンガ (“flying squirrel”)

Alternative spelling of ちょうこくぐ座 (“Caelum”)

(idiomatic) tears (drops from the eyes)