(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”)

(number theory) twin prime, a prime number that is either 2 less or 2 more than another prime number, such as 3 and 5

a gemellus muscle

younger paternal half sister

a wife's sister