The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Hersteller (0 members)
- TopDown (0 members)
- HeatCapacity (0 members)
- Pound (0 members)
- Client (0 members)
- DigitalMaterialIdentifier (0 members)
- CrossSectionDetermination (0 members)
- MarineWaveEnergyTransformation (0 members)
- TankShip (0 members)
- ConventionalEnergyCarrierDisposition (0 members)
- Renewable (0 members)
- PressureUnit (2 members)
- SolarSteamElectricProcess (1 member)
- TextualEntity (1 member)
- Femtomole (0 members)
- SubstitutionMethod (0 members)
- SolarHeatUnit (0 members)
- CombustibleEnergyCarrierDisposition (0 members)
- ColonyFormingUnitPerMilliliter (0 members)
- AmorpheStruktur (0 members)
- TwoAxisTracking (0 members)
- GasTurbineProcess (0 members)
- Population (4 members)
- PassengerTransport (2 members)
- ElectricalEnergyAmountValue (2 members)
- CodeDocumentation (0 members)
- Chemical (0 members)
- TerawattHour (0 members)
- FossilMunicipalWasteFuel (0 members)
- Megabasepair (0 members)
- Gram (0 members)
- CandelaPerSquareMeter (0 members)
- ProcessBoundary (0 members)
- PlannedOutage (0 members)
- UnitPerMilliliter (0 members)
- Hybrid (0 members)
- MagneticFluxUnit (3 members)
- Dataset (0 members)
- Prüfkörperinformationen (3 members)
- DefinedTerm (9 members)
- RenewablePowerPlant (6 members)
- Millisiemens (0 members)
- PowerPlant (15 members)
- MoleculeCount (0 members)
- SolarHeatPlant (0 members)
- RenewableElectrolyticHydrogen (1 member)
- IndustrialWasteFuel (2 members)
- Metallbindung (0 members)
- QualityControlFlag (0 members)
- StudyFactsheet (1 member)