U+26AA "⚪" Medium White Circle Unicode Character

U+26AA "⚪" Medium White Circle is a geometric symbol representing a hollow, unfilled circle of medium weight, distinct from both the smaller degree sign or ring operator and the larger, heavier white circle (U+25CB). It is commonly used in user interface design, typography, and data visualization to denote optional states, unselected radio buttons, or neutral or empty indicators in digital forms and diagrams. In plain text, it can serve as a placeholder or a visual marker for an incomplete or open slot, and its medium thickness makes it suitable for balanced alignment alongside other characters in lists or technical documentation.