| Answer | Crossword Clue |
|---|---|
| ciphers | A zero; a figure 0 |
| centroid | the point that may be considered as the center of a one- or two-dimensional figure, the sum of the displacements of all points in the figure from such a point being zero |
| PAREN | Figure above a 9 or 0, for short |
| aught | cipher (0); zero |
| aughts | cipher (0); zero |
| cipher | the symbol (0) for zero |
