⊙

⊙ englanniksi

1. A vector pointing out of the page.

2. The product (matrices)|Hadamard product between two matrices.

3. 2047|ISO 2047 symbol for ''Shift In''.

4. gate.

5. hydrogen (symbol|Daltonian symbol)

Technically, this should be red: ⊙. May also be typeset ☉.