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

Short for 十六夜の月 (izayoi no tsuki): the moon just past the full moon, the start of the waning moon

the sixteenth night of the month under the lunar calendar, just after the full moon

you're never too old to learn

a hexadecagon