postpone vs suspend

postpone and suspend both are verbs.

Word	Noun	Adjective	Verb	Adverb
postpone	No	No	Yes	No
suspend	No	No	Yes	No

As verbs, suspend is a hyponym of postpone; that is, suspend is a word with a more specific, narrower meaning than postpone:

Other hyponyms of postpone include call, hold, probate, reprieve, respite.

postpone (verb)	suspend (verb)
hold back to a later time	stop a process or a habit by imposing a freeze on it
	cause to be held in suspension in a fluid
	make inoperative or stop
	hang freely
	bar temporarily; from school, office, etc.
	render temporarily ineffective