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

Alternative form of 五指に入る (goshi ni hairu)

(mathematics) commutative law

(cryptography) key exchange - an exchange of peers' keys at initialization phase of connection.

exchange diary, a diary shared between multiple people

(education) peer grading

(telephone) switchboard