the age of 16 for a girl / the age of 64 for a man / (by extension from the age 16 sense) the breaking of the hymen through sexual intercourse

official notice

stem or continuative form of 達する (tassuru) [suru]

yesterday

yesterday

last night / yesterday

(formal) Female third-person singular pronoun; she, her, girlfriend

(colloquial) a girlfriend (a female partner in a romantic relationship)

(formal) someone's age

(literary) they (about women or girls)