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

a personal or private matter / (by extension) selfishness

personal, private / secret

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

private; mine

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

a female given name

(literary) night, evening

night

staying up late