aerobatics vs stunt flying

aerobatics and stunt flying both are nouns.

Word	Noun	Adjective	Verb	Adverb
aerobatics	Yes	No	No	No
stunt flying	Yes	No	No	No

As nouns, aerobatics and stunt flying are synonyms defined as:

aerobatics and stunt flying: the performance of stunts while in flight in an aircraft

Other synonyms of aerobatics include acrobatics, stunting.

aerobatics (noun)	stunt flying (noun)
the performance of stunts while in flight in an aircraft	the performance of stunts while in flight in an aircraft