John Browning vs John M. Browning

John Browning and John M. Browning both are nouns.

Word	Noun	Adjective	Verb	Adverb
John Browning	Yes	No	No	No
John M. Browning	Yes	No	No	No

As nouns, John Browning and John M. Browning are synonyms defined as:

John Browning and John M. Browning: United States inventor of firearms (especially automatic pistols and repeating rifles and a machine gun called the Peacemaker) (1855-1926)

Other synonyms of John Browning include Browning, John Moses Browning.

John Browning (noun)	John M. Browning (noun)
United States inventor of firearms (especially automatic pistols and repeating rifles and a machine gun called the Peacemaker) (1855-1926)	United States inventor of firearms (especially automatic pistols and repeating rifles and a machine gun called the Peacemaker) (1855-1926)