twin-aisle airplane vs widebody aircraft

twin-aisle airplane and widebody aircraft both are nouns.

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

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

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

Other synonyms of twin-aisle airplane include wide-body, wide-body aircraft.

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