springer vs moo-cow

springer and moo-cow both are nouns.

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

As nouns, moo-cow is a hypernym of springer; that is, moo-cow is a word with a broader meaning than springer:

Other hypernyms of springer include cow.

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