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

one's best effort

(colloquial, idiomatic) deceive, play a trick on someone

Alternative form of 胸が一杯になる

to have a lump in one's throat, stomach full of food / (idiomatic) to be overwhelmed with emotions