lodging vs fastness

lodging and fastness both are nouns.

Word	Noun	Adjective	Verb	Adverb
lodging	Yes	No	No	No
fastness	Yes	No	No	No

As nouns, fastness is a hypernym of lodging; that is, fastness is a word with a broader meaning than lodging:

Other hypernyms of lodging include fixedness, fixity, fixture, secureness, allegation.

lodging (noun)	fastness (noun)
the act of lodging	a strongly fortified defensive structure
structures collectively in which people are housed	a rate (usually rapid) at which something happens
the state or quality of being lodged or fixed even temporarily	the quality of being fixed in place as by some firm attachment