a circle / a sphere, ball / (by extension) any non-perfectly round objects, such as an oval / the "○" symbol, equivalent to a check mark in some other languages

private; mine

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

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”)

a surname

suffix for ship names