classical Edo-period Japanese mathematics

close friend, bosom buddy / crony, chum

湯川: a surname

a female given name

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

wasanbon, a type of fine-grained Japanese sugar

(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