| Efnisorð | Verk |
|---|---|
| Reiðhestskostir | 1 |
| Reiðhjól | 7 |
| Reiði | 1 |
| Reiði (tilfinning) | 9 |
| Reiðtygi | 1 |
| Reif | 2 |
| Reiki | 1 |
| Reikistjörnur | 4 |
| Reikniefnafræði | 1 |
| Reiknilíkön | 81 |
| Reikningshald | 3 |
| Reikningsskil | 75 |
| Reikningsskilastaðlar | 11 |
| Reikningur | 6 |
| Reiknirit | 56 |
| Reiknistofa bankanna | 1 |
| Reikniverkfræði | 15 |
| Rein tension | 1 |
| Reindeer, Rangifer tarandus | 1 |
| Reinforced concrete | 2 |
| Reinforced concrete construction | 1 |
| Reinforced learning | 1 |
| Reinforcement Learning | 1 |
| Reinforcement learning | 4 |
| Reion | 1 |