| Similarity | Rank | |
|---|---|---|
| doomsday | 0.680 | 45395 |
| Armageddon | 0.650 | 31965 |
| apocalypse | 0.644 | 28496 |
| disaster | 0.624 | 3885 |
| Doomsday | 0.606 | 56213 |
| pandemic | 0.605 | 22984 |
| catastrophe | 0.602 | 15190 |
| dot-com | 0.599 | 58474 |
| meltdown | 0.590 | 19263 |
| cataclysmic | 0.588 | 53251 |
| pandemics | 0.588 | 81261 |
| AGW | 0.584 | 68676 |
| FUD | 0.575 | 91883 |
| cataclysm | 0.569 | 66969 |
| Sarbanes-Oxley | 0.568 | 60243 |
| Stuxnet | 0.566 | 72126 |
| Pandemic | 0.563 | 69823 |
| climate-change | 0.563 | 93307 |
| obsolescence | 0.556 | 51641 |
| Hurricane | 0.556 | 10646 |
| apocalyptic | 0.552 | 29384 |
| fallout | 0.550 | 21565 |
| meltdowns | 0.549 | 63991 |
| hurricane | 0.546 | 12031 |
| disasters | 0.546 | 10143 |