writer vs Aleksandr Solzhenitsyn

writer and Aleksandr Solzhenitsyn both are nouns.

Word	Noun	Adjective	Verb	Adverb
writer	Yes	No	No	No
Aleksandr Solzhenitsyn	Yes	No	No	No

writer (noun)	Aleksandr Solzhenitsyn (noun)
writes (books or stories or articles or the like) professionally (for pay)	Soviet writer and political dissident whose novels exposed the brutality of Soviet labor camps (born in 1918)
a person who is able to write and has written something