| Similarity | Rank | |
|---|---|---|
| drainage | 0.830 | 10638 |
| Irrigation | 0.817 | 40766 |
| Sewer | 0.788 | 44938 |
| Wastewater | 0.771 | 52649 |
| Sewage | 0.768 | 66452 |
| Stormwater | 0.765 | 62618 |
| Septic | 0.756 | 68920 |
| Erosion | 0.752 | 67301 |
| Remediation | 0.741 | 67735 |
| Water | 0.730 | 2787 |
| Sanitary | 0.728 | 63167 |
| Sediment | 0.722 | 95198 |
| Reclamation | 0.722 | 54409 |
| Groundwater | 0.720 | 66053 |
| Lymphatic | 0.702 | 98656 |
| Catchment | 0.702 | 79864 |
| drains | 0.697 | 17106 |
| Sanitation | 0.696 | 43413 |
| Soil | 0.694 | 21080 |
| Filtration | 0.692 | 63090 |
| Sprinkler | 0.691 | 88949 |
| Sump | 0.688 | 88119 |
| Waterproofing | 0.685 | 72985 |
| Excavation | 0.683 | 80051 |
| Hydraulic | 0.681 | 46631 |