freeze up

verb

The car's engine froze up in the cold weather.

意味（1）

To be adversely affected by ice, and not function.

意味（2）

(intransitive) (of machines and software) To come to a sudden halt, stop working (functioning).

Since the last update, the program freezes up after a few minutes of use.

意味（3）

(intransitive) (of people and other animals) To stop or be stopped due to attentiveness, fear, surprise, etc.

Despite all of the rehearsals, as soon as I got on stage I froze up.

意味（4）

(intransitive) To become cold and formal in demeanour.