斉 せい Also written 齊 Meanings Noun Qi (kingdom in China during the Spring and Autumn Period and the Period of the Warring States); Ch'i Kanji 斉 uniform. Read as セイ. Words containing 斉 一斉 (いっせい) simultaneous 斉射 (せいしゃ) volley (of fire) 不斉 (ふせい) irregularity And 23 more. Jinuma: Japanese Dictionary · Word lists