The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Dictation (2 members)
- Dictionaries (7 members)
- Digitising (0 members)
- Dikke Van Dale (1 member)
- Dokmar (1 member)
- Dragon (1 member)
- Dredging (1 member)
- Dunglish (3 members)
- Dutch (10 members)
- Dutch-English dictionaries (4 members)
- Dutch.AGROVOC (1 member)
- Dutch language (1 member)
- Dutchcadillac.nl (1 member)
- E-numbers (1 member)
- EASA (1 member)
- EENI Global Business School (1 member)
- EIOPA (1 member)
- EMCDDA (1 member)
- ENTSO-E (1 member)
- ESCO classification (2 members)
- EU (12 members)
- EUROPUMP (1 member)
- EY (1 member)
- Economics (1 member)
- Education (22 members)
- Eindhoven University of Technology (TU/e) (1 member)
- Electricity (4 members)
- Encyclopedias (2 members)
- English (12 members)
- English dictionaries (2 members)
- Environmental Performance of Buildings (1 member)
- Erasmus Universiteit (1 member)
- Ernst & Young (1 member)
- Esculaap.nl (1 member)
- Eskom (2 members)
- EuroVoc (1 member)
- Eurocode vertaallijst (2 members)
- European Single Access Point (ESAP) (1 member)
- European Union Aviation Safety Agency (EASA) (1 member)
- Eurydice (2 members)
- F (1 member)
- FAQs (1 member)
- Fespa.com (2 members)
- Finance (10 members)
- Finnish (1 member)
- Firefighting (1 member)
- Fish (1 member)
- Flemish (13 members)
- Food (1 member)
- French (9 members)