a personal or private matter / selfishness / privacy, secrecy / (women's speech, obsolete) a brother-in-law

personal, private / secret

(formal) first-person singular pronoun: I, me

Alternative spelling of 私達 (“we; us”)

student movement

student body; student association

student ID card; student ID

enrolled student; current student

(collective) elder sister and younger brother

Rare spelling of 兄弟 (“siblings”, literally “elder brother and younger brother”).