A "handle" is a part of an object designed for gripping or holding. It is commonly found on items like doors, bags, and tools, allowing users to easily lift, pull, or push them. Handles can be made from various materials, including plastic, metal, or wood, and come in different shapes and sizes to suit their specific functions. In addition to physical objects, the term "handle" can also refer to a username or online identity, especially on social media platforms. For example, a person's Twitter handle is their unique identifier on that platform, allowing others to find and interact with them.