cowboy vs rodeo rider

cowboy and rodeo rider both are nouns.

Word	Noun	Adjective	Verb	Adverb
cowboy	Yes	No	No	No
rodeo rider	Yes	No	No	No

As nouns, cowboy and rodeo rider are synonyms defined as:

cowboy and rodeo rider: a performer who gives exhibitions of riding and roping and bulldogging

cowboy (noun)	rodeo rider (noun)
someone who is reckless or irresponsible (especially in driving vehicles)	a performer who gives exhibitions of riding and roping and bulldogging
a performer who gives exhibitions of riding and roping and bulldogging
a male hired hand who tends cattle and performs other duties on horseback