See also: Appendix:Variations of "a"
- Circle-A, the symbol for anarchy or anarchism.
- (electricity) ammeter
- See ○ for uses of a symbol inside a circle.
- U+24B6 was not in any way intended to be the anarchism symbol, where the A and surrounding circle (originally the letter O) are supposed to overlap (see right). It is however the closest character in Unicode and commonly used for this.
- (ammeter): 🄰