widebody aircraft vs twin-aisle airplane

widebody aircraft and twin-aisle airplane both are nouns.

Word	Noun	Adjective	Verb	Adverb
widebody aircraft	Yes	No	No	No
twin-aisle airplane	Yes	No	No	No

As nouns, widebody aircraft and twin-aisle airplane are synonyms defined as:

widebody aircraft and twin-aisle airplane: a commercial airliner with two aisles

Other synonyms of widebody aircraft include wide-body, wide-body aircraft.

widebody aircraft (noun)	twin-aisle airplane (noun)
a commercial airliner with two aisles	a commercial airliner with two aisles