moo-cow vs springer

moo-cow and springer both are nouns.

Word	Noun	Adjective	Verb	Adverb
moo-cow	Yes	No	No	No
springer	Yes	No	No	No

As nouns, springer is a hyponym of moo-cow; that is, springer is a word with a more specific, narrower meaning than moo-cow:

Other hyponyms of moo-cow include springing cow, heifer.

moo-cow (noun)	springer (noun)
female of domestic cattle:	a cow about to give birth
	a large spaniel with wavy silky coat usually black or liver and white
	the lowest stone in an arch -- from which it springs