hemisphere vs occident

hemisphere and occident both are nouns.

Word	Noun	Adjective	Verb	Adverb
hemisphere	Yes	No	No	No
occident	Yes	No	No	No

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

Other hyponyms of hemisphere include eastern hemisphere, orient, western hemisphere.

hemisphere (noun)	occident (noun)
either half of the cerebrum	the hemisphere that includes North America and South America
half of the terrestrial globe
half of a sphere