belabor vs beat up

belabor and beat up both are verbs.

Word	Noun	Adjective	Verb	Adverb
belabor	No	No	Yes	No
beat up	No	No	Yes	No

As verbs, beat up is a hypernym of belabor; that is, beat up is a word with a broader meaning than belabor:

belabor: beat soundly
beat up: give a beating to; subject to a beating, either as a punishment or as an act of aggression

Other hypernyms of belabor include beat, work over.

belabor (verb)	beat up (verb)
attack verbally with harsh criticism	gather
beat soundly	give a beating to; subject to a beating, either as a punishment or as an act of aggression
to work at or to absurd length