craving vs addiction

craving and addiction both are nouns.

Word	Noun	Adjective	Verb	Adverb
craving	Yes	No	No	No
addiction	Yes	No	No	No

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

Other hyponyms of craving include appetence, appetency, appetite.

craving (noun)	addiction (noun)
an intense desire for some particular thing	(Roman law) a formal award by a magistrate of a thing or person to another person (as the award of a debtor to his creditor); a surrender to a master
	an abnormally strong craving
	being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)