| Copilot | copilot |
| Kopilot | co-pilot copilot |
| Pilot | pilot |
| Kopist | copyist |
| Mopila | morning wood |
| Autopilot | autopilot automatic pilot |
| Opiat | opiate |
| Epilog | epilogue |
| Compiler | compiler |
| Bleilot | perpendicular |
| Boxplot | box plot boxplot |
| Ozelot | ocelot |
| Plot | plot |
| COPD | COPD |
| Copyright | copyright |
| Kopiar | cartulary |
| Kuopio | Kuopio |
| Opi | grandfather |
| Doping | doping |
| Hopi | Hopi |