a personal or private matter / (by extension) selfishness

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

personal, private / secret

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

Alternative spelling of 私達 (“we; us”)

private; mine

(messaging) leaving someone on read

drive-through (establishment providing drive-through service)

(less polite) frequently asked questions; FAQ

barrage of questions, torment someone with inquiries