hog vs lamb

hog and lamb both are nouns.

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

As nouns, lamb is a hypernym of hog; that is, lamb is a word with a broader meaning than hog:

hog (noun)	lamb (noun)
domestic swine	young sheep
a sheep up to the age of one year; one yet to be sheared	the flesh of a young domestic sheep eaten as food
a person regarded as greedy and pig-like	a sweet innocent mild-mannered person (especially a child)
	a person easily deceived or cheated (especially in financial matters)

hog (verb)	lamb (verb)
take greedily; take more than one's share	give birth to a lamb