P. T. Barnum vs Barnum

P. T. Barnum and Barnum both are nouns.

Word	Noun	Adjective	Verb	Adverb
P. T. Barnum	Yes	No	No	No
Barnum	Yes	No	No	No

As nouns, P. T. Barnum and Barnum are synonyms defined as:

P. T. Barnum and Barnum: United States showman who popularized the circus (1810-1891)

Other synonyms of P. T. Barnum include Phineas Taylor Barnum.

P. T. Barnum (noun)	Barnum (noun)
United States showman who popularized the circus (1810-1891)	United States showman who popularized the circus (1810-1891)