draw back vs fall back

draw back and fall back both are verbs.

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

As verbs, fall back is a hyponym of draw back; that is, fall back is a word with a more specific, narrower meaning than draw back:

Other hyponyms of draw back include retreat, retrograde, back down, back off, back up.

draw back (verb)	fall back (verb)
use a surgical instrument to hold open (the edges of a wound or an organ)	go back to bad behavior
pull back or move away or backward	retreat
	hang (back) or fall (behind) in movement, progress, development, etc.
	fall backwards and down
	move back and away from
	have recourse to