Cases of word usage

1) a writer of a book, play etc (author)

2) a writer of plays (dramatist)

3) (of) an independent journalist, writer etc (freelance)

4) an old horse; a person paid to do hard and uninteresting work as a writer (hack)

5) a humorous talker or writer (humorist)

6) dictionary writer (philologer)

7) a writer of poems (poet)

8) royal people; a payment of money as a share of the profit, e.g. to a writer (royalty)

9) (used by a speaker or writer referring to herself or himself and another or others) (we)