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

Obsolete spelling of シベリア (Shiberia, “Siberia (a region of Russia)”)

(taxonomy) subfamily

rank / follow / sub- prefix

(chemistry) indicates a lower oxidation number: -ous