Quizlet for Teams. Quizlet is the easiest way to practice and master whatever you’re learning. More than 30 million students study with Quizlet each month because it’s the leading education and flashcard app, that makes studying languages, history, vocabulary and science simple and effective. Trademark. A trademark is a single word, a short phrase, a design, or a symbol or a combination of these which identifies or distinguishes the source of the goods or services of one person/company from those belonging to another. While those are the general categories, there are registered trademarks for shapes, sounds, fragrances, and colors. Trademark definition, any name, symbol, figure, letter, word, or mark adopted and used by a manufacturer or merchant in order to designate specific goods and to distinguish them from those manufactured or sold by others. A trademark is proprietary and is usually registered with the Patent and Trademark Office to assure its exclusive use by its owner or licensee.