aeroplane vs airplane

aeroplane and airplane both are nouns.

Word	Noun	Adjective	Verb	Adverb
aeroplane	Yes	No	No	No
airplane	Yes	No	No	No

As nouns, aeroplane and airplane are synonyms defined as:

aeroplane and airplane: an aircraft that has a fixed wing and is powered by propellers or jets

Other synonyms of aeroplane include plane.

aeroplane (noun)	airplane (noun)
an aircraft that has a fixed wing and is powered by propellers or jets	an aircraft that has a fixed wing and is powered by propellers or jets