birth vs lamb

birth and lamb both are nouns.

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

As verbs, lamb is a hyponym of birth; that is, lamb is a word with a more specific, narrower meaning than birth:

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

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