Vocabulary What does 外野手 (がいやしゅ, gaiyashu) mean? 外野手 (がいやしゅ, gaiyashu) means outfielder. Quick factsReadingがいやしゅRomajigaiyashuPart of speechnoun 外野手がいやしゅgaiyashuoutfielder1noun outfielderKanji in this word外outside野field, plain; wild手hand