| Opiat | opiate |
| Kopiar | cartulary |
| Kopist | copyist |
| Opi | grandfather |
| Opium | opium |
| Apia | Apia |
| Fiat | fiat |
| Hiat | hiatus |
| Asiat | Asian Oriental |
| Diät | diet |
| Copilot | copilot |
| Mopila | morning wood |
| Doping | doping |
| Hopi | Hopi |
| Kopie | copy duplicate blueprint manifold replica replication print reprint |
| Kopilot | co-pilot copilot |
| Opioid | opioid |
| Utopia | utopia |
| Appian | Appian |
| Piano | piano |
| piano | gentle piano |