blink away vs hold back

blink away and hold back both are verbs.

Word	Noun	Adjective	Verb	Adverb
blink away	No	No	Yes	No
hold back	No	No	Yes	No

As verbs, hold back is a hypernym of blink away; that is, hold back is a word with a broader meaning than blink away:

Other hypernyms of blink away include keep, keep back, restrain.

blink away (verb)	hold back (verb)
keep back by blinking	prevent the action or expression of
	hold back, as of a danger or an enemy; check the expansion or influence of
	hold back; keep from being perceived by others
	secure and keep for possible future use or application
	wait before acting
	refrain from doing