hold off vs hold back

hold off and hold back both are verbs.

Word	Noun	Adjective	Verb	Adverb
hold off	No	No	Yes	No
hold back	No	No	Yes	No

As verbs, hold off and hold back are synonyms defined as:

Other synonyms of hold off include wait.

hold off (verb)	hold back (verb)
resist and fight to a standoff	prevent the action or expression of
wait before acting	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