Hunter vs Orion

Hunter and Orion both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hunter	Yes	No	No	No
Orion	Yes	No	No	No

As nouns, Hunter and Orion are synonyms defined as:

Hunter and Orion: a constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel

Hunter (noun)	Orion (noun)
a constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel	a constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel
	(Greek mythology) a giant Boeotian hunter who pursued the Pleiades and was eventually slain by Artemis; was then placed in the sky as a constellation