How do you copyright a word to protect its use and ownership?

To copyright a Word and protect its use and ownership, you can't do so through copyright law. Copyright law protects original works of authorship, such as books, music, and artwork, but not individual Words. However, you can potentially protect a Word through trademark law by using it in commerce to identify the source of goods or services. This would give you exclusive rights to use the Word in connection with those goods or services.