acrobat vs aerialist

acrobat and aerialist both are nouns.

Word	Noun	Adjective	Verb	Adverb
acrobat	Yes	No	No	No
aerialist	Yes	No	No	No

As nouns, aerialist is a hyponym of acrobat; that is, aerialist is a word with a more specific, narrower meaning than acrobat:

acrobat: an athlete who performs acts requiring skill and agility and coordination
aerialist: an acrobat who performs in the air (as on a rope or trapeze)

Other hyponyms of acrobat include balancer, circus acrobat, contortionist, funambulist, tightrope walker.

acrobat (noun)	aerialist (noun)
an athlete who performs acts requiring skill and agility and coordination	an acrobat who performs in the air (as on a rope or trapeze)