To be adversely affected by ice, and not function. / (intransitive) (of machines and software) To come to a sudden halt, stop working (functioning).

The blocking of pipes due to freezing. / A period of extremely cold, freezing weather. / (seasons) The start of the time when surface waters are frozen over.

Third-person singular simple present indicative form of freeze up

present participle of freeze up

plural of freeze-up