snake oil vs medical specialty

snake oil and medical specialty both are nouns.

Word	Noun	Adjective	Verb	Adverb
snake oil	Yes	No	No	No
medical specialty	Yes	No	No	No

snake oil (noun)	medical specialty (noun)
communication (written or spoken) intended to deceive	the branches of medical science that deal with nonsurgical techniques
(medicine) any of various liquids sold as medicine (as by a travelling medicine show) but medically worthless