| Similarity | Rank | |
|---|---|---|
| UAV | 0.877 | 49002 |
| UAVs | 0.869 | 60175 |
| UAS | 0.866 | 51126 |
| unmanned | 0.857 | 26624 |
| Aircraft | 0.753 | 19885 |
| Reconnaissance | 0.753 | 60060 |
| Northrop | 0.750 | 47355 |
| Aerospace | 0.740 | 25016 |
| Propulsion | 0.734 | 55488 |
| F-16 | 0.726 | 59753 |
| Spacecraft | 0.725 | 76108 |
| Force's | 0.721 | 54603 |
| Aviation | 0.720 | 13000 |
| DARPA | 0.718 | 52151 |
| Avionics | 0.717 | 97209 |
| Grumman | 0.717 | 45107 |
| F-22 | 0.715 | 75391 |
| F-15 | 0.713 | 98460 |
| Lockheed | 0.707 | 27404 |
| Aeronautics | 0.702 | 53557 |
| Missile | 0.701 | 33684 |
| C-130 | 0.698 | 83046 |
| F-35 | 0.697 | 54008 |
| Missiles | 0.697 | 83067 |
| Raytheon | 0.696 | 53464 |