| 1. | zero. |
| 2. | any of the Arabic numerals or figures. |
| 3. | Arabic numerical notation collectively. |
| 4. | something of no value or importance. |
| 5. | a person of no influence; nonentity. |
| 6. | a secret method of writing, as by transposition or substitution of letters, specially formed symbols, or the like. Compare cryptography. |
| 7. | writing done by such a method; a coded message. |
| 8. | the key to a secret method of writing. |
| 9. | a combination of letters, as the initials of a name, in one design; monogram. |
| 10. | to use figures or numerals arithmetically. |
| 11. | to write in or as in cipher. |
| 12. | to calculate numerically; figure. |
| 13. | to convert into cipher. |
