Fetch is a popular command used in dog training, where a dog retrieves an object, such as a ball or a stick, and brings it back to its owner. This activity not only provides exercise for the dog but also strengthens the bond between the dog and its owner. It can be played in various settings, including parks and backyards. The game of fetch can be enhanced with toys specifically designed for this purpose, like frisbees or rubber balls. Many dogs instinctively enjoy chasing and retrieving, making fetch a fun and engaging way to keep them active and entertained.