Clinton vs President Clinton

Clinton and President Clinton both are nouns.

Word	Noun	Adjective	Verb	Adverb
Clinton	Yes	No	No	No
President Clinton	Yes	No	No	No

As nouns, Clinton and President Clinton are synonyms defined as:

Clinton and President Clinton: 42nd President of the United States (1946-)

Other synonyms of Clinton include Bill Clinton, William Jefferson Clinton.

Clinton (noun)	President Clinton (noun)
a town in east central Iowa	42nd President of the United States (1946-)
42nd President of the United States (1946-)
United States politician who as governor of New York supported the project to build the Erie Canal (1769-1828)
wife of President Clinton and later a woman member of the United States Senate (1947-)