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

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

Alternative spelling of 私達 (“we; us”)

outbox

transmitter

A type of private courier service that delivers small packages or documents to a recipient's mailbox.

chain mail (chain letters collectively)

email newsletter