paragrapher vs writer

paragrapher and writer both are nouns.

Word	Noun	Adjective	Verb	Adverb
paragrapher	Yes	No	No	No
writer	Yes	No	No	No

As nouns, writer is a hypernym of paragrapher; that is, writer is a word with a broader meaning than paragrapher:

paragrapher: a writer of paragraphs (as for publication on the editorial page of a newspaper)
writer: writes (books or stories or articles or the like) professionally (for pay)

Other hypernyms of paragrapher include author.

paragrapher (noun)	writer (noun)
a writer of paragraphs (as for publication on the editorial page of a newspaper)	writes (books or stories or articles or the like) professionally (for pay)
	a person who is able to write and has written something