A large mass of cold air moving from higher to lower latitudes that causes temperatures to drop sharply; also called a 寒潮 hán​cháo.

An ocean current that flows from higher to lower latitudes, having a temperature lower than the surrounding water.

(literary) A scholar of very modest means or low social standing.

(literary) A cold river or stream in winter.

(metaphorical) A cold spell; a sudden negative trend or downturn, such as in the stock market or economy