Mount Parnassus vs Parnassus

Mount Parnassus and Parnassus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mount Parnassus	Yes	No	No	No
Parnassus	Yes	No	No	No

As nouns, Mount Parnassus and Parnassus are synonyms defined as:

Mount Parnassus and Parnassus: (Greek mythology) a mountain in central Greece where (according to Greek mythology) the Muses lived; known as the mythological home of music and poetry

Other synonyms of Mount Parnassus include Liakoura.

Mount Parnassus (noun)	Parnassus (noun)
(Greek mythology) a mountain in central Greece where (according to Greek mythology) the Muses lived; known as the mythological home of music and poetry	(Greek mythology) a mountain in central Greece where (according to Greek mythology) the Muses lived; known as the mythological home of music and poetry