postpone vs hold over

postpone and hold over both are verbs.

Word	Noun	Adjective	Verb	Adverb
postpone	No	No	Yes	No
hold over	No	No	Yes	No

As verbs, postpone and hold over are synonyms defined as:

Other synonyms of postpone include defer, prorogue, put off, put over, remit, set back, shelve, table.

postpone (verb)	hold over (verb)
hold back to a later time	intimidate somebody (with a threat)
	hold over goods to be sold for the next season
	keep in a position or state from an earlier period of time
	continue a term of office past the normal period of time
	hold back to a later time