fall back vs utilize

fall back and utilize both are verbs.

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

As verbs, utilize is a hypernym of fall back; that is, utilize is a word with a broader meaning than fall back:

fall back: have recourse to
utilize: put into service; make work or employ for a particular purpose or for its inherent or natural purpose

Other hypernyms of fall back include apply, employ, use, utilise.

fall back (verb)	utilize (verb)
go back to bad behavior	convert (from an investment trust to a unit trust)
retreat	put into service; make work or employ for a particular purpose or for its inherent or natural purpose
hang (back) or fall (behind) in movement, progress, development, etc.
fall backwards and down
move back and away from
have recourse to