cartwheel vs dollar

cartwheel and dollar both are nouns.

Word	Noun	Adjective	Verb	Adverb
cartwheel	Yes	No	Yes	No
dollar	Yes	No	No	No

As nouns, dollar is a hypernym of cartwheel; that is, dollar is a word with a broader meaning than cartwheel:

cartwheel (noun)	dollar (noun)
acrobatic revolutions with the body turned sideways and the arms and legs outstretched like the spokes of a wheel	a symbol of commercialism or greed
a wheel that has wooden spokes and a metal rim	a piece of paper money worth one dollar
a dollar made of silver	a United States coin worth one dollar
	the basic monetary unit in many countries; equal to 100 cents

cartwheel (verb)	dollar (verb)
do cartwheels: perform an acrobatic movement using both hands and feet