trim back vs bring down

trim back and bring down both are verbs.

Word	Noun	Adjective	Verb	Adverb
trim back	No	No	Yes	No
bring down	No	No	Yes	No

As verbs, trim back and bring down are synonyms defined as:

Other synonyms of trim back include cut, cut back, cut down, reduce, trim, trim down.

trim back (verb)	bring down (verb)
cut down on; make a reduction in	cut down on; make a reduction in
	impose something unpleasant
	cause to be enthusiastic
	cause to come to the ground
	move something or somebody to a lower position
	cause the downfall of; of rulers