ropewalker vs aerialist

ropewalker and aerialist both are nouns.

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

As nouns, aerialist is a hypernym of ropewalker; that is, aerialist is a word with a broader meaning than ropewalker:

ropewalker: an acrobat who performs on a rope stretched at some height above the ground
aerialist: an acrobat who performs in the air (as on a rope or trapeze)

ropewalker (noun)	aerialist (noun)
an acrobat who performs on a rope stretched at some height above the ground	an acrobat who performs in the air (as on a rope or trapeze)