President Polk vs James Polk

President Polk and James Polk both are nouns.

Word	Noun	Adjective	Verb	Adverb
President Polk	Yes	No	No	No
James Polk	Yes	No	No	No

As nouns, President Polk and James Polk are synonyms defined as:

President Polk and James Polk: 11th President of the United States; his expansionism led to the Mexican War and the annexation of California and much of the southwest (1795-1849)

Other synonyms of President Polk include James K. Polk, James Knox Polk, Polk.

President Polk (noun)	James Polk (noun)
11th President of the United States; his expansionism led to the Mexican War and the annexation of California and much of the southwest (1795-1849)	11th President of the United States; his expansionism led to the Mexican War and the annexation of California and much of the southwest (1795-1849)