cowherd vs cowpuncher

cowherd and cowpuncher both are nouns.

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

As nouns, cowherd and cowpuncher are synonyms defined as:

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

Other synonyms of cowherd include cowhand, cowpoke, puncher.

cowherd (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