/ ˈraɪtə(r); NAmE / noun
1.
a person whose job is writing books, stories, articles, etc. :
writers of poetry
a travel / cookery, etc. writer
2.
a person who has written a particular thing :
the writer of this letter
3.
(with an adjective) a person who forms letters in a particular way when they are writing :
a messy writer
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WORD ORIGIN
Old English wrītere , of Germanic origin.