Vocabulary What does フライ級 (フライきゅう, furaikyuu) mean? フライ級 (フライきゅう, furaikyuu) means flyweight. Quick factsReadingフライきゅうRomajifuraikyuuPart of speechnoun フライ級フライきゅうfuraikyuuflyweight1noun flyweightKanji in this word級grade, rank, class