close friend, bosom buddy / crony, chum

Musashi Province: a region of old Japan consisting of modern-day Tokyo, Saitama, and Kanagawa prefectures.

a surname / a surname / a male given name / a male given name / a surname

(chiefly women's speech) first person singular pronoun: I, me

(polite) first-person singular pronoun: I, me

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”)