Pitt vs First Earl of Chatham

Pitt and First Earl of Chatham both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pitt	Yes	No	No	No
First Earl of Chatham	Yes	No	No	No

As nouns, Pitt and First Earl of Chatham are synonyms defined as:

Pitt and First Earl of Chatham: English statesman who brought the Seven Years' War to an end (1708-1778)

Other synonyms of Pitt include Pitt the Elder, William Pitt.

Pitt (noun)	First Earl of Chatham (noun)
English statesman who brought the Seven Years' War to an end (1708-1778)	English statesman who brought the Seven Years' War to an end (1708-1778)
English statesman and son of Pitt the Elder (1759-1806)
a British playwright who created the fictional character Sweeney Todd (1799-1855)