General
- European Commission – Enlargement (all EU languages)
- EuroVOC, Multilingual Thesaurus EU (all EU languages + HR and SERB)
- Europa, Legislation Summaries, Glossary (11 EU languages)
- Eurojargon (20 EU languages)
Specific
- European Commission, Customs glossary
- Council of the EU, Glossary of Security Documents, Security Features and other related technical terms
- Europass, Terminology of European education and training policy (14 EU languages)
- European Environmental Agency, Environmental Terminology and Discovery Service (ETDS) (21 EU languages)
- EU Project Office, Glossary
- Energy.eu – Europe’s Energy Portal, Glossary
- European Chemical Agency (ECHA), Glossary (22 EU languages)
Terminology