| waterjuffer | dragonfly |
| Waterjuffers | Coenagrionidae |
| Waterkaardefamilie | Hydrocharitaceae |
| waterkanon | water cannon |
| waterkant | riverside |
| waterkering | embankment |
| waterkers | watercress |
| Waterkevers | Hydrophilidae |
| waterkoker | teakettle |
| Waterkracht | Hydroelectricity |
| Waterkrachtcentrale | Hydroelectricity |
| Waterkrachtcentrale Krasnojarskaja | Krasnoyarsk hydroelectric dam |
| Waterkrachtcentrale Saratov | Saratov Hydroelectric Station |
| Waterkrachtenergie | Hydro-power |
| waterkringloop | water cycle |
| waterlaarzen | waders |
| waterleiding | waterworks |
| waterleidingbedrijf | waterworks |
| waterlelie | water lily |
| Waterleliefamilie | Nymphaeaceae |
| waterlijn | waterline |
| Waterloo Bridge | Waterloo Bridge |
| waterloop | watercourse |
| Watermaal-Bosvoorde | Watermael-Boitsfort |
| Waterman | Aquarius |
| watermeloen | watermelon |
| watermerk | watermark |
| Watermoccasinslang | Agkistrodon piscivorus |
| watermolen | water mill |
| Watermunt | Mentha aquatica |
| Waternavel | Hydrocotyle |
| waternimf | naiad |
| Waternoot | Trapa |
| wateronthardingsapparaat | water softener |
| wateroplosbaar | water-soluble |
| wateropnemend | absorbent |
| Wateropossum | Water Opossum |
| wateroppervlak | water surface |
| Waterorgel | Water organ |
| waterpas | level |
| waterpieper | water pipit |
| waterpijp | hookah |
| waterplaats | watering place |
| waterplant | water plant |
| waterpoel | water hole |
| waterpokken | chickenpox |
| waterpolo | water polo |
| Waterpolo op de Olympische Zomerspelen | Water polo at the Summer Olympics |
| waterrad | waterwheel |
| Waterraket | Water rocket |
| waterreservoir | cistern |
| Waterrietzanger | Aquatic Warbler |
| Waterrijk | Abounding in water |
| Waterschap | Water board |
| Waterschapsheuvel | Watership Down |
| waterscheerling | cowbane |
| waterscheiding | watershed |
| Waterschorpioen | Nepa cinerea |
| Waterschuw | Afraid of water |
| waterski | water ski |
| waterskiën | water-ski |
| Waterslang | Hydra |
| Waterslangen | Acrochordidae |
| Watersnood | Flood |
| Watersnoodramp | Flood |
| Watersnuffel | Common Blue Damselfly |
| waterspiegel | water surface |
| Waterspinazie | Ipomoea aquatica |
| Waterspitsmuis | Eurasian Water Shrew |
| waterspreeuw | dipper |
| Waterspreeuwen | Dipper |
| Watersprong | Hydraulic jump |
| waterspuier | gargoyle |
| waterspuwer | waterspout |
| Waterstam | Water Tribe |
| Waterstammen | Water Tribe |
| waterstof | hydrogen |
| Waterstofauto | Hydrogen vehicle |
| waterstofbom | fusion bomb |
| Waterstofbromaat | Bromic acid |
| Waterstofbrug | Hydrogen bond |
| Waterstofeconomie | Hydrogen economy |
| waterstofperoxyde | hydrogen peroxide |
| Waterstofproductie | Hydrogen production |
| Waterstoftechniek | Hydrogen technologies |
| Waterstraalsnijden | Water jet cutter |
| Watersturing | Waterbending |
| watertoren | water tower |
| Watertrapper | African Finfoot |
| wateruuwerk | water clock |
| waterval | chute |
| Watervallen in IJsland | Waterfalls of Iceland |
| Watervalmethode | Waterfall model |
| waterverf | watercolor |
