fanjet engine vs turbojet engine

fanjet engine and turbojet engine both are nouns.

Word	Noun	Adjective	Verb	Adverb
fanjet engine	Yes	No	No	No
turbojet engine	Yes	No	No	No

As nouns, fanjet engine and turbojet engine are synonyms defined as:

fanjet engine and turbojet engine: a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrust

Other synonyms of fanjet engine include fan-jet, fanjet, turbofan, turbofan engine, turbojet.

fanjet engine (noun)	turbojet engine (noun)
a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrust	a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrust