关元音 guānyuányīn close vowel Origin Definitions Defs Strokes Stroke Words Sentences Sents 关 關 guān verb to close To close or shut (a door, window, etc.); to shut down a business元音 yuányīn vowel A speech sound produced by the vocal cords vibrating while the air flows through the mouth and throat without being blocked; also called 母音 mǔyīn.