| Word | Digits in Telephone Number |
|---|---|
| Optation | 67828466 |
| Optative | 67828483 |
| Optician | 67842426 |
| Opticist | 67842478 |
| Optimise | 67846473 |
| Optimism | 67846476 |
| Optimist | 67846478 |
| Optimity | 67846489 |
| Optimize | 67846493 |
| Optimums | 67846867 |
| Optional | 67846625 |
| Optioned | 67846633 |
| Optionee | 67846633 |