| Similarity | Rank | |
|---|---|---|
| gases | 0.869 | 11662 |
| deuterium | 0.847 | 86208 |
| gasses | 0.839 | 45276 |
| methane | 0.832 | 19799 |
| hydrogen | 0.822 | 9917 |
| helium | 0.812 | 31291 |
| vapour | 0.802 | 35280 |
| vapors | 0.800 | 41277 |
| ionized | 0.796 | 59187 |
| dioxide | 0.795 | 10273 |
| inert | 0.794 | 29045 |
| combustion | 0.787 | 15295 |
| hydrocarbons | 0.786 | 32458 |
| ionization | 0.785 | 60226 |
| particulates | 0.783 | 55487 |
| oxides | 0.780 | 42880 |
| sulfur | 0.780 | 22001 |
| argon | 0.779 | 60540 |
| vapours | 0.776 | 83502 |
| nitrogen | 0.773 | 12237 |
| ammonia | 0.773 | 21773 |
| radioactive | 0.769 | 15026 |
| sulfide | 0.768 | 49224 |
| sulfuric | 0.768 | 60609 |
| hydrocarbon | 0.767 | 36213 |