basement vs storey

basement and storey both are nouns.

Word	Noun	Adjective	Verb	Adverb
basement	Yes	No	No	No
storey	Yes	No	No	No

As nouns, storey is a hypernym of basement; that is, storey is a word with a broader meaning than basement:

basement: the lowermost portion of a structure partly or wholly below ground level; often used for storage
storey: a structure consisting of a room or set of rooms at a single position along a vertical scale

Other hypernyms of basement include floor, level, story.

basement (noun)	storey (noun)
the lowermost portion of a structure partly or wholly below ground level; often used for storage	a structure consisting of a room or set of rooms at a single position along a vertical scale
the ground floor facade or interior in Renaissance architecture