Grandma Moses vs Moses

Grandma Moses and Moses both are nouns.

Word	Noun	Adjective	Verb	Adverb
Grandma Moses	Yes	No	No	No
Moses	Yes	No	No	No

As nouns, Grandma Moses and Moses are synonyms defined as:

Grandma Moses and Moses: United States painter of colorful and primitive rural scenes (1860-1961)

Other synonyms of Grandma Moses include Anna Mary Robertson Moses.

Grandma Moses (noun)	Moses (noun)
United States painter of colorful and primitive rural scenes (1860-1961)	(Old Testament) the Hebrew prophet who led the Israelites from Egypt across the Red sea on a journey known as the Exodus; Moses received the Ten Commandments from God on Mount Sinai
	United States painter of colorful and primitive rural scenes (1860-1961)