painter vs John Trumbull

painter and John Trumbull both are nouns.

Word	Noun	Adjective	Verb	Adverb
painter	Yes	No	No	No
John Trumbull	Yes	No	No	No

painter (noun)	John Trumbull (noun)
large American feline resembling a lion	American satirical poet (1750-1831)
a line that is attached to the bow of a boat and used for tying up (as when docking or towing)	American painter of historical scenes (1756-1843)
an artist who paints
a worker who is employed to cover objects with paint