painter vs Viktor Vasarely

painter and Viktor Vasarely both are nouns.

Word	Noun	Adjective	Verb	Adverb
painter	Yes	No	No	No
Viktor Vasarely	Yes	No	No	No

painter (noun)	Viktor Vasarely (noun)
large American feline resembling a lion	French painter (born in Hungary) who was a pioneer of op art (1908-1997)
a line that is attached to the bow of a boat and used for tying up (as when docking or towing)
an artist who paints
a worker who is employed to cover objects with paint