hemisphere vs orient

hemisphere and orient both are nouns.

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

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

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

hemisphere (noun)	orient (noun)
either half of the cerebrum	the hemisphere that includes Eurasia and Africa and Australia
half of the terrestrial globe
half of a sphere

hemisphere (verb)	orient (verb)
	adjust to a specific need or market
	familiarize (someone) with new surroundings or circumstances
	determine one's position with reference to another point
	be oriented
	cause to point