turbojet vs fanjet engine

turbojet and fanjet engine both are nouns.

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

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

turbojet and fanjet 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 turbojet include fan-jet, fanjet, turbofan, turbofan engine, turbojet engine.

turbojet (noun)	fanjet 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
an airplane propelled by a fanjet engine