| Similarity | Rank | |
|---|---|---|
| Scuba | 0.860 | 30810 |
| scuba | 0.855 | 15689 |
| PADI | 0.827 | 32276 |
| Diving | 0.798 | 23120 |
| diving | 0.788 | 6504 |
| Divemaster | 0.771 | 99925 |
| Dive | 0.763 | 22291 |
| Snorkel | 0.763 | 86996 |
| snorkel | 0.762 | 30635 |
| diver | 0.758 | 22641 |
| Nitrox | 0.757 | 93311 |
| Divers | 0.751 | 41818 |
| Snorkeling | 0.749 | 65900 |
| snorkeling | 0.725 | 19848 |
| Kayaking | 0.723 | 52599 |
| dive | 0.720 | 6104 |
| Diver | 0.714 | 37391 |
| kayaking | 0.714 | 19116 |
| snorkelers | 0.714 | 91250 |
| divers | 0.706 | 14035 |
| kiteboarding | 0.706 | 97199 |
| snorkelling | 0.705 | 40577 |
| kayak | 0.704 | 16590 |
| diver's | 0.698 | 97561 |
| liveaboard | 0.695 | 97949 |