Vocabulary What does 競走馬 (きょうそうば, kyousouba) mean? 競走馬 (きょうそうば, kyousouba) means racehorse. Quick factsReadingきょうそうばRomajikyousoubaPart of speechnoun 競走馬きょうそうばkyousoubaracehorse1noun racehorseKanji in this word競competition, contest走run馬horse