downsize vs bring down

downsize and bring down both are verbs.

Word	Noun	Adjective	Verb	Adverb
downsize	No	No	Yes	No
bring down	No	No	Yes	No

As verbs, bring down is a hypernym of downsize; that is, bring down is a word with a broader meaning than downsize:

Other hypernyms of downsize include cut, cut back, cut down, reduce, trim, trim back, trim down.

downsize (verb)	bring down (verb)
(of a company) reduce in size or number of employees	cut down on; make a reduction in
design or manufacture in a smaller size	impose something unpleasant
dismiss from work	cause to be enthusiastic
	cause to come to the ground
	move something or somebody to a lower position
	cause the downfall of; of rulers