dismiss vs give the sack

dismiss and give the sack both are verbs.

Word	Noun	Adjective	Verb	Adverb
dismiss	No	No	Yes	No
give the sack	No	No	Yes	No

As verbs, dismiss and give the sack are synonyms defined as:

dismiss and give the sack: terminate the employment of; discharge from an office or position

Other synonyms of dismiss include can, displace, fire, force out, give notice, give the axe, sack, send away, terminate.

As verbs, give the sack is a hypernym of dismiss; that is, give the sack is a word with a broader meaning than dismiss:

dismiss: stop associating with
give the sack: terminate the employment of; discharge from an office or position

Other hypernyms of dismiss include can, dismiss, displace, fire, force out, give notice, give the axe, sack, send away, terminate.

dismiss (verb)	give the sack (verb)
declare void	terminate the employment of; discharge from an office or position
bar from attention or consideration
end one's encounter with somebody by causing or permitting the person to leave
cease to consider; put out of judicial consideration
terminate the employment of; discharge from an office or position
stop associating with