domestic sheep vs lamb

domestic sheep and lamb both are nouns.

Word	Noun	Adjective	Verb	Adverb
domestic sheep	Yes	No	No	No
lamb	Yes	No	Yes	No

domestic sheep (noun)	lamb (noun)
any of various breeds raised for wool or edible meat or skin	young sheep
	the flesh of a young domestic sheep eaten as food
	a sweet innocent mild-mannered person (especially a child)
	a person easily deceived or cheated (especially in financial matters)

domestic sheep (verb)	lamb (verb)
	give birth to a lamb