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

yawning and stretching

canine tooth, cuspid

silk thread

construct, build (a large project, e.g. a dam, a bridge, a skyscraper, etc.) / establish an organization