pidgin vs Oregon Jargon

pidgin and Oregon Jargon both are nouns.

Word	Noun	Adjective	Verb	Adverb
pidgin	Yes	No	No	No
Oregon Jargon	Yes	No	No	No

As nouns, Oregon Jargon is a hyponym of pidgin; that is, Oregon Jargon is a word with a more specific, narrower meaning than pidgin:

pidgin: an artificial language used for trade between speakers of different languages
Oregon Jargon: a pidgin incorporating Chinook and French and English words; formerly used as a lingua franca in northwestern North America

Other hyponyms of pidgin include Chinook Jargon.

pidgin (noun)	Oregon Jargon (noun)
an artificial language used for trade between speakers of different languages	a pidgin incorporating Chinook and French and English words; formerly used as a lingua franca in northwestern North America