| 1 | English | ol | Nonstandard form of old |
| 2 | Japanese | OL | — |
| 3 | Japanese | オフィスレディー | — |
| 4 | Japanese | オフィス | — |
| 5 | English | Office | — |
| 6 | Middle English | office | The state of being employed or having a work or... |
| 7 | Old French | office | office; service |
| 8 | Latin | officium | duty, service; office; obligation, an obligatory... |
| 9 | Latin | opificium | work |
| 10 | Latin | opifex | Someone who does work ; worker, maker, framer,... |
| 11 | Latin | Ops | earth goddess, fertility deity |
| 12 | Latin | oscen | any bird by whose song cries augurs divined... |
| 13 | Latin | opscen | — |
| 14 | Latin | ob- | towards; against |
| 15 | Latin | obolus | obolus |
| 16 | Ancient Greek | ὀβολός | obol, obolus, used at Athens as both a weight and... |