Warren vs Earl Warren

Warren and Earl Warren both are nouns.

Word	Noun	Adjective	Verb	Adverb
Warren	Yes	No	No	No
Earl Warren	Yes	No	No	No

As nouns, Warren and Earl Warren are synonyms defined as:

Warren and Earl Warren: United States jurist who served as chief justice of the United States Supreme Court (1891-1974)

Warren (noun)	Earl Warren (noun)
United States jurist who served as chief justice of the United States Supreme Court (1891-1974)	United States jurist who served as chief justice of the United States Supreme Court (1891-1974)
United States writer and poet (1905-1989)