A trademark is a unique word, phrase, symbol, or design that identifies and distinguishes the source of goods or services. To trademark a word that you have created, you must first search the USPTO database to make sure that no one else is using the word for similar goods or services. Once you have confirmed that the word is available, you can file an application with the USPTO. The application must include accurate descriptions of the goods and services associated with the word. After the application is approved, you will receive a trademark registration certificate which you must use to protect your mark. Finally, you must monitor the use of the mark and take action against any unauthorized use.