Sõnastikus on 536 märksõna.
| EN | waste |
| EN | waste collection |
| EN | waste disposal |
| EN | waste heat |
| EN | waste management |
| EN | waste management |
| EN | waste water treatment (sewage treatment) |
| EN | water balance |
| EN | water management |
| EN | welfare |
| EN | wetland sewage treatment system (constructed wetland for wastewater treatment) |
| EN | willingness to accept (WTA) |
| EN | willingness to pay (WTP) |
| EN | win-win |
| EN | wind energy |
| EN | World Charter for Nature |
| EN | world heritage |
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