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

大王烏賊: a giant squid

squid ink

use one thing for many purposes / work someone hard

fishing hook, fishhook - a barbed hook, usually metal, used for fishing.