definition of author's
2. countable noun. An author is a person whose job is writing books. Haruki Murakami is Japan's best-selling author. 3. countable noun. The author of a plan or proposal is the person who thinks of it and works out the details. The authors of the plan believe they can reach this point within about two years. 4. verb. To author something means to be the author of it. Then he opened a restaurant, authored a book, and landed his own radio show.