lambast vs beat up

lambast and beat up both are verbs.

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

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

lambast: beat with a cane
beat up: give a beating to; subject to a beating, either as a punishment or as an act of aggression

Other hypernyms of lambast include beat, work over.

lambast (verb)	beat up (verb)
censure severely or angrily	gather
beat with a cane	give a beating to; subject to a beating, either as a punishment or as an act of aggression