杜宇 Traditional form: 杜宇 Pinyin (reading): dùyǔ Definitions: cuckoo same as 杜鵑鳥/杜鹃鸟 Characters: 杜 - to prevent, to restrict, to stop; surname 宇 - building, house, room, structure; space, the universe Traditional characters: 杜 - to prevent, to restrict, to stop; surname 宇 - building, house, room, structure; space, the universe