fall back vs resort

fall back is not a noun while resort is a noun.

Word	Noun	Adjective	Verb	Adverb
fall back	No	No	Yes	No
resort	Yes	No	Yes	No

As verbs, fall back and resort are synonyms defined as:

Other synonyms of fall back include recur.

fall back (noun)	resort (noun)
	act of turning to for assistance
	something or someone turned to for assistance or security
	a hotel located in a resort area
	a frequently visited place

fall back (verb)	resort (verb)
go back to bad behavior	move, travel, or proceed toward some place
retreat	have recourse to
hang (back) or fall (behind) in movement, progress, development, etc.
fall backwards and down
move back and away from
have recourse to