writer vs Alexander Isayevich Solzhenitsyn

writer and Alexander Isayevich Solzhenitsyn both are nouns.

Word	Noun	Adjective	Verb	Adverb
writer	Yes	No	No	No
Alexander Isayevich Solzhenitsyn	Yes	No	No	No

writer (noun)	Alexander Isayevich 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