鯉のぼり こいのぼり Also written 鯉幟 Meanings Noun koinobori; carp streamer (i.e.: carp-shaped windsock traditionally flown to celebrate the Children's Day in May) See also: こどもの日 (こどものひ). Kanji 鯉 carp. Read as こい. Jinuma: Japanese Dictionary · Word lists