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 land, a country

country, nation, nation-state

in class

a visit by a student's guardians to observe the class

(historical) the Ryukyu Kingdom