hollow red circle (U+2B55)

The ⭕️ emoji is a large, circular symbol that is often used to represent a variety of concepts, including: a ball, the sun, a target, a hole, or a zero. It is a versatile emoji that can be used in many different contexts, such as sports, weather, games, or math. It can also be used to indicate that something is complete, whole, or perfect. Additionally, it can be used to highlight or emphasize a point in a conversation or message. Overall, the ⭕️ emoji is a simple yet powerful symbol that can convey a range of meanings depending on the context in which it is used.