lamb vs birth

lamb and birth both are nouns.

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

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

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

lamb (noun)	birth (noun)
young sheep	the event of being born
the flesh of a young domestic sheep eaten as food	a baby born; an offspring
a sweet innocent mild-mannered person (especially a child)	the process of giving birth
a person easily deceived or cheated (especially in financial matters)	the kinship relation of an offspring to the parents
	the time when something begins (especially life)

lamb (verb)	birth (verb)
give birth to a lamb	cause to be born