ingot vs pig

ingot and pig both are nouns.

Word	Noun	Adjective	Verb	Adverb
ingot	Yes	No	No	No
pig	Yes	No	Yes	No

As nouns, pig is a hyponym of ingot; that is, pig is a word with a more specific, narrower meaning than ingot:

Other hyponyms of ingot include bullion.

ingot (noun)	pig (noun)
metal that is cast in the shape of a block for convenient handling	domestic swine
	a crude block of metal (lead or iron) poured from a smelting furnace
	mold consisting of a bed of sand in which pig iron is cast
	a person regarded as greedy and pig-like
	uncomplimentary terms for a policeman
	a coarse obnoxious person