Rob Roy MacGregor vs Rob Roy

Rob Roy MacGregor and Rob Roy both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rob Roy MacGregor	Yes	No	No	No
Rob Roy	Yes	No	No	No

As nouns, Rob Roy MacGregor and Rob Roy are synonyms defined as:

Rob Roy MacGregor and Rob Roy: Scottish clan leader and outlaw who was the subject of a 1817 novel by Sir Walter Scott (1671-1734)

Other synonyms of Rob Roy MacGregor include MacGregor, Robert MacGregor.

Rob Roy MacGregor (noun)	Rob Roy (noun)
Scottish clan leader and outlaw who was the subject of a 1817 novel by Sir Walter Scott (1671-1734)	a manhattan cocktail made with Scotch whiskey
	Scottish clan leader and outlaw who was the subject of a 1817 novel by Sir Walter Scott (1671-1734)