turbojet engine vs turbofan

turbojet engine and turbofan both are nouns.

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

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

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

turbojet engine (noun)	turbofan (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