RhymeZone: nishi definitions

Definitions of Nishi:

noun: (sumo) the left-hand (less prestigious) side of the banzuke (番付, “ranking list”)
noun: (sumo) a rikishi (力士, “sumo wrestler”) listed on the left side of the banzuke
noun: (sumo) the western side of the ring
noun: A surname.

(Definitions from Wiktionary)