封冻 Traditional form: 封凍 Pinyin (reading): fēngdòng Definitions: to freeze over (of water or land) Characters: 封 - envelope, letter; to confer, to grant; feudal 冻 - cold; to freeze, to congeal; jelly Traditional characters: 封 - envelope, letter; to confer, to grant; feudal 凍 - cold; to freeze, to congeal; jelly