acrobat vs balancer

acrobat and balancer both are nouns.

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

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

acrobat: an athlete who performs acts requiring skill and agility and coordination
balancer: an acrobat who balances himself in difficult positions

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

acrobat (noun)	balancer (noun)
an athlete who performs acts requiring skill and agility and coordination	either of the rudimentary hind wings of dipterous insects; used for maintaining equilibrium during flight
	an acrobat who balances himself in difficult positions