A written constitution is a formal document defining the nature of the constitutional settlement, the rules that govern the political system and the rights of citizens and governments in a codified form.
The World Trade Organisation (WTO) is a permanent institution which agrees, governs and administers the rules of the international trading system. The WTO's member states together contribute around 90 per cent of world trade.
Whaling is the hunting and killing of whales for commercial, recreational or scientific purposes.
Wales was last an independent principality in 1282, when Edward I of England finally defeated the Prince of Wales, Llywelyn the Last, after years of on-off warfare and manoeuvring. Edward named his son as Prince of Wales in 1301 to seal his victory.
The Water Services Regulation Authority, better known as Ofwat, is the independent economic regulator of the privatised water and sewerage industry in England and Wales.
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As the next general election begins to loom over the horizon, the debate over Britain's future energy policy mix is starting to hot up - and nothing seems guaranteed.
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