流感 liúgǎn HSK6 flu Origin Definitions Defs Strokes Stroke Words Sentences Sents 流 liú noun abbreviation of 流行 liúxíng to spread to spread or propagate widely, especially of a contagious disease or new ideas感 gǎn nounverb abbreviation of 感冒 gǎnmào common cold; to catch a cold a common viral infection of the upper respiratory tract; to catch a cold