| Similarity | Rank | |
|---|---|---|
| polonium | 0.830 | 36755 |
| radioactive | 0.826 | 6851 |
| caesium | 0.810 | 37760 |
| dioxin | 0.791 | 17452 |
| contamination | 0.780 | 7877 |
| radio-active | 0.777 | 71832 |
| contaminant | 0.776 | 23773 |
| radionuclide | 0.753 | 25560 |
| tritium | 0.753 | 26341 |
| ionise | 0.752 | 26893 |
| caesium-137 | 0.750 | 59747 |
| methane | 0.750 | 11786 |
| iodine-131 | 0.749 | 51608 |
| radon | 0.743 | 18238 |
| radiation | 0.743 | 4047 |
| beryllium | 0.743 | 52345 |
| intermediate-level | 0.742 | 62187 |
| cancer-causing | 0.739 | 51516 |
| pollutant | 0.738 | 10281 |
| irradiated | 0.733 | 31355 |
| carcinogen | 0.733 | 23531 |
| polonium-210 | 0.733 | 71984 |
| lindane | 0.731 | 67136 |
| ionize | 0.730 | 32044 |
| hexafluoride | 0.730 | 78594 |