prop vs friction prop

prop and friction prop both are nouns.

Word	Noun	Adjective	Verb	Adverb
prop	Yes	No	Yes	No
friction prop	Yes	No	No	No

As nouns, friction prop is a hyponym of prop; that is, friction prop is a word with a more specific, narrower meaning than prop:

prop: a support placed beneath or against something to keep it from shaking or falling
friction prop: a steel prop in which yield is controlled by friction between two sliding surfaces or telescopic tubes.

Other hyponyms of prop include pitprop, sprag, friction yielding prop, mechanical yielding prop.

prop (noun)	friction prop (noun)
a support placed beneath or against something to keep it from shaking or falling	a steel prop in which yield is controlled by friction between two sliding surfaces or telescopic tubes.
a propeller that rotates to push against air
any movable articles or objects used on the set of a play or movie

prop (verb)	friction prop (verb)
support by placing against something solid or rigid