| Subject |
|---|
| Office [1] |
| office desk [1] |
| office furniture [1] |
| ohniště [1] |
| oko [2] |
| oltář [1] |
| op-art [1] |
| optical illusion [1] |
| optický klam [1] |
| organic [1] |
| organický [1] |
| orientační plán [1] |
| Orientační systém [1] |
| orientační systém v dopravě [1] |
| orientační systém ve městě [1] |
| orientační systém ve zdravotnictví [1] |
| orientation plan [1] |
| Orientation system [1] |
| orientation system in the city [1] |
| orientation system in the health service [1] |