ranch hand vs puncher

ranch hand and puncher both are nouns.

Word	Noun	Adjective	Verb	Adverb
ranch hand	Yes	No	No	No
puncher	Yes	No	No	No

As nouns, puncher is a hyponym of ranch hand; that is, puncher is a word with a more specific, narrower meaning than ranch hand:

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

Other hyponyms of ranch hand include cowhand, cowherd, cowpoke, cowpuncher.

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