work over vs beat up

work over and beat up both are verbs.

Word	Noun	Adjective	Verb	Adverb
work over	No	No	Yes	No
beat up	No	No	Yes	No

As verbs, work over and beat up are synonyms defined as:

work over and beat up: give a beating to; subject to a beating, either as a punishment or as an act of aggression

Other synonyms of work over include beat.

work over (verb)	beat up (verb)
give a beating to; subject to a beating, either as a punishment or as an act of aggression	gather
	give a beating to; subject to a beating, either as a punishment or as an act of aggression