泥封 Traditional form: 泥封 Pinyin (reading): nífēng Definitions: to seal jars etc with mud, clay or lute lute luting Characters: 泥 - mud, earth, clay; plaster, paste 封 - envelope, letter; to confer, to grant; feudal Traditional characters: 泥 - mud, earth, clay; plaster, paste 封 - envelope, letter; to confer, to grant; feudal