- a
- A10 Countries
- A2 / EU2 Countries
- A8 / EU8 Countries
- Acquis communautaire
- Article 50
- b
- Brexit
- c
- Charter of Fundamental Rights of the European Union
- Common Agricultural Policy (CAP)
- Common Fisheries Policy (CFP)
- Commonwealth of Nations
- Council of Europe
- Council of the European Union
- Customs union (CU)
- d
- Democratic deficit of the EU
- e
- Economic and Monetary Union (EMU)
- EFTA Court
- EU Competences
- EU15 countries
- EU27
- EU28
- Europe ‘à la carte’
- European Arrest Warrant (EAW)
- European Commission
- European Communities Act (ECA)
- European Convention on Human Rights (ECHR)
- European Council
- European Court of Human Rights (ECtHR)
- European Court of Justice (ECJ)
- European Economic Area (EEA)
- European Free Trade Association (EFTA)
- European Parliament
- European Union
- European Union VAT directive
- Europol
- Eurozone
- f
- Free Trade Agreement (FTA)
- g
- Gross Domestic Product (GDP)
- Gross Domestic Product (GDP) PPP per Capita
- Group of Eight (G8)
- i
- In-work benefits
- n
- Net migration
- North American Free Trade Agreement (NAFTA)
- North Atlantic Treaty Organization (NATO)
- o
- Opt-outs in the EU
- Organisation for Economic Co-operation and Development (OECD)
- p
- Pooled Sovereignty
- Purdah
- q
- Qualified Majority Voting (QMV)
- r
- Red Tape
- Right of Initiative
- s
- Schengen Agreement
- Supreme Court of the United Kingdom
- t
- The Rotterdam Effect
- The Single Market
- Think tank
- Trade Barriers
- Treaty on European Union
- u
- United Nations (UN)
- United Nations Framework Convention on Climate Change (UNFCC)
- United Nations Security Council (UNSC)
- v
- Veto
- w
- Working Time Directive
- World Trade Organization (WTO)