propjet vs turboprop

propjet and turboprop both are nouns.

Word	Noun	Adjective	Verb	Adverb
propjet	Yes	No	No	No
turboprop	Yes	No	No	No

As nouns, propjet and turboprop are synonyms defined as:

propjet and turboprop: an airplane with an external propeller that is driven by a turbojet engine

Other synonyms of propjet include turbo-propeller plane.

propjet (noun)	turboprop (noun)
an airplane with an external propeller that is driven by a turbojet engine	an airplane with an external propeller that is driven by a turbojet engine