Meaning of “sack” - Learner’s Dictionary

sack

noun uk us /sæk/

[ C ] a large bag made of paper, plastic, or cloth and used to carry or store things

the sack UK

B2 When someone gets the sack or is given the sack, they are told to leave their job:

He got the sack from his last job.

(Definition of “sack noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)