| Similarity | Rank | |
|---|---|---|
| neutron | 0.856 | 35660 |
| neutrons | 0.854 | 44331 |
| neutrino | 0.847 | 70890 |
| neutrinos | 0.845 | 66418 |
| deuterium | 0.840 | 86208 |
| subatomic | 0.822 | 64342 |
| photon | 0.817 | 33504 |
| interstellar | 0.808 | 31391 |
| protons | 0.797 | 41243 |
| fission | 0.790 | 39321 |
| photons | 0.786 | 31946 |
| atoms | 0.784 | 14412 |
| quarks | 0.783 | 65913 |
| gravitational | 0.780 | 22967 |
| asteroids | 0.776 | 33535 |
| wormholes | 0.774 | 95091 |
| electrons | 0.769 | 17880 |
| orbiting | 0.769 | 32947 |
| interplanetary | 0.768 | 60971 |
| quasars | 0.767 | 93060 |
| atom | 0.766 | 16976 |
| helium | 0.763 | 31291 |
| atomic | 0.762 | 12781 |
| thermonuclear | 0.762 | 76089 |
| aether | 0.762 | 94853 |