| Similarity | Rank | |
|---|---|---|
| irrigation | 0.831 | 11652 |
| Drainage | 0.830 | 48557 |
| drains | 0.826 | 17106 |
| seepage | 0.811 | 53925 |
| culverts | 0.777 | 73246 |
| septic | 0.774 | 22341 |
| stormwater | 0.765 | 26586 |
| sewer | 0.760 | 13245 |
| reservoir | 0.755 | 13344 |
| dewatering | 0.753 | 87432 |
| spillway | 0.753 | 85395 |
| sewage | 0.747 | 15787 |
| irrigating | 0.747 | 81817 |
| culvert | 0.745 | 57347 |
| watercourse | 0.740 | 88226 |
| watercourses | 0.740 | 93448 |
| aeration | 0.739 | 43387 |
| silt | 0.733 | 39076 |
| reservoirs | 0.730 | 24613 |
| drain | 0.729 | 6885 |
| downspouts | 0.728 | 76699 |
| floodplain | 0.728 | 46911 |
| backflow | 0.727 | 82062 |
| rainwater | 0.719 | 23331 |
| dikes | 0.718 | 81455 |