(collective) sisters / (attributive, business) the status of being a sister

twins

close friend, bosom buddy / crony, chum

Rare spelling of 兄弟 (“siblings”, literally “brothers”). (sisters)

(chiefly women's speech) first person singular pronoun: I, me

private; mine

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

a personal or private matter / (by extension) selfishness

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

personal, private / secret