cowpuncher vs puncher

cowpuncher and puncher both are nouns.

Word	Noun	Adjective	Verb	Adverb
cowpuncher	Yes	No	No	No
puncher	Yes	No	No	No

As nouns, cowpuncher and puncher are synonyms defined as:

cowpuncher and puncher: a hired hand who tends cattle and performs other duties on horseback

Other synonyms of cowpuncher include cowhand, cowherd, cowpoke.

cowpuncher (noun)	puncher (noun)
a hired hand who tends cattle and performs other duties on horseback	a tool for making holes or indentations
	a hired hand who tends cattle and performs other duties on horseback
	someone who delivers punches