Search gender: all male female ウウ Japanese Names Variations. 2 names found. gender: all male female Name: u Katakana: ウウ 0 Kanji: うう Meaning: う う Name: u Katakana: ウウ 0 Kanji: 羽宇 Meaning: 羽Feathers. Insect wings. Wings. A word for counting birds and rabbits. 宇Eaves. Roof. A house covered with a large roof. A world covered with a big sky. Infinite space. Heaven. The sky. Spirit. A broad and generous heart. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ウウ Japanese Names Variations.