playwright vs William Shakspere

playwright and William Shakspere both are nouns.

Word	Noun	Adjective	Verb	Adverb
playwright	Yes	No	No	No
William Shakspere	Yes	No	No	No

playwright (noun)	William Shakspere (noun)
someone who writes plays	English poet and dramatist considered one of the greatest English writers (1564-1616)