| Keyword | Avg CPC* |
| Outokumpu | 0.07$ |
| Outwar | 0.07$ |
| Outwitting | 0.07$ |
| Overfed | 0.07$ |
| Overloaded | 0.07$ |
| Overwhelms | 0.07$ |
| Oxidase | 0.07$ |
| Oxydendrum | 0.07$ |
| Oxygenium | 0.07$ |
| Oxyuriasis | 0.07$ |
| Oyapock | 0.07$ |
| Ozanne | 0.07$ |
| Ozimek | 0.07$ |
| Obeisance | 0.06$ |
| Obliquus | 0.06$ |
| Obloquy | 0.06$ |
| Oboist | 0.06$ |
| Obviate | 0.06$ |
| Occiput | 0.06$ |
| Ochrana | 0.06$ |
| Ochronosis | 0.06$ |
| Odontaspis | 0.06$ |
| Oelkers | 0.06$ |
| Oelrich | 0.06$ |
| Oenologist | 0.06$ |
| Oersted | 0.06$ |
| Officious | 0.06$ |
| Oftentimes | 0.06$ |
| Ogata | 0.06$ |
| Ogawa | 0.06$ |
| Ogdoad | 0.06$ |
| Ogonyok | 0.06$ |
| Ogygia | 0.06$ |
| Ohlendorf | 0.06$ |
| Ohlsson | 0.06$ |
| Ohnemus | 0.06$ |
| Ojeda | 0.06$ |
| Oji | 0.06$ |
| Okubo | 0.06$ |
| Okumura | 0.06$ |
| Oldenkamp | 0.06$ |
| Olefine | 0.06$ |
| Olguin | 0.06$ |
| Oligohydramnios | 0.06$ |
| Olmedo | 0.06$ |
| Olsson | 0.06$ |
| Random keywords | |
| daw | 0.47$ |
| halla | 0.08$ |
| kittredge | 0.63$ |
| tracheal | 0.13$ |
| textural | 0.26$ |
| boat bridge | 0.49$ |
| sphincter | 0.08$ |
| steatoma | 0.06$ |