victualler vs innkeeper

victualler and innkeeper both are nouns.

Word	Noun	Adjective	Verb	Adverb
victualler	Yes	No	No	No
innkeeper	Yes	No	No	No

As nouns, innkeeper is a hypernym of victualler; that is, innkeeper is a word with a broader meaning than victualler:

Other hypernyms of victualler include boniface, host.

victualler (noun)	innkeeper (noun)
a supplier of victuals or supplies to an army	the owner or manager of an inn
an innkeeper (especially British)