cowhand vs cowpuncher

cowhand and cowpuncher both are nouns.

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

As nouns, cowhand and cowpuncher are synonyms defined as:

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

Other synonyms of cowhand include cowherd, cowpoke, puncher.

cowhand (noun)	cowpuncher (noun)
a hired hand who tends cattle and performs other duties on horseback	a hired hand who tends cattle and performs other duties on horseback