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

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

a personal or private matter / (by extension) selfishness

private; mine

Alternative spelling of 私達 (“we; us”)

use one thing for many purposes / work someone hard

to use one's head

You'll be convinced if you listen to me.

to be evident / to be obvious / to understand completely

分かり切る: to be evident, to be obvious, to understand completely