偕かい成せいMeanings1nounKaisei (publisher)company nameProper noun referring to the Japanese publishing company Kaisei-sha, known for children's books and educational materials.偕かい成せい社しゃは児じ童どう書しょの出しゅっ版ぱん社しゃとして有ゆう名めいです。Kaisei-sha is famous as a publisher of children's books.