revolve around vs concentrate on

revolve around and concentrate on both are verbs.

Word	Noun	Adjective	Verb	Adverb
revolve around	No	No	Yes	No
concentrate on	No	No	Yes	No

As verbs, revolve around and concentrate on are synonyms defined as:

Other synonyms of revolve around include center, center on, centre, focus on, revolve about.

revolve around (verb)	concentrate on (verb)
move around in a circular motion	center upon
center upon