koto: a Japanese zither derived from the Chinese guzheng / (colloquial) guzheng: a Chinese zither on which the koto was based

to flick and make something spring/jump / (of materials) to reject; to repel (some external substance) / (from the metaphor of beating beads of an abacus) to calculate

play (a stringed or keyboard musical instrument)

(slang) pistol; gun / tiddlywinks

(colloquial) a girlfriend (a female partner in a romantic relationship)

(formal) Female third-person singular pronoun; she, her, girlfriend

(literary) they (about women or girls)

skillful, dexterous

(rare) skill, dexterity / flattery (from being told how skillful one is, even if one isn't) / a person with the seventh dan in the games of shogi or go

(obsolete) same as jōzu reading above