propel vs displace

propel and displace both are verbs.

Word	Noun	Adjective	Verb	Adverb
propel	No	No	Yes	No
displace	No	No	Yes	No

As verbs, displace is a hypernym of propel; that is, displace is a word with a broader meaning than propel:

propel: cause to move forward with force
displace: cause to move or shift into a new position or place, both in a concrete and in an abstract sense

Other hypernyms of propel include move.

propel (verb)	displace (verb)
cause to move forward with force	cause to move, usually with force or pressure
give an incentive for action	cause to move or shift into a new position or place, both in a concrete and in an abstract sense
	take the place of or have precedence over
	terminate the employment of; discharge from an office or position