whelp vs birth

whelp and birth both are nouns.

Word	Noun	Adjective	Verb	Adverb
whelp	Yes	No	Yes	No
birth	Yes	No	Yes	No

As verbs, birth is a hypernym of whelp; that is, birth is a word with a broader meaning than whelp:

Other hypernyms of whelp include bear, deliver, give birth, have.

whelp (noun)	birth (noun)
young of any of various canines such as a dog or wolf	the event of being born
	a baby born; an offspring
	the process of giving birth
	the kinship relation of an offspring to the parents
	the time when something begins (especially life)

whelp (verb)	birth (verb)
give birth to (a puppy)	cause to be born