Hubbard vs Mount Hubbard

Hubbard and Mount Hubbard both are nouns.

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

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

Hubbard and Mount Hubbard: a mountain peak in southeastern Alaska that is part of the Coast Range (14,950 feet high)

Hubbard (noun)	Mount Hubbard (noun)
a mountain peak in southeastern Alaska that is part of the Coast Range (14,950 feet high)	a mountain peak in southeastern Alaska that is part of the Coast Range (14,950 feet high)
a United States writer of science fiction and founder of Scientology (1911-1986)