It was used as the opening/closing ceremonies as well as for athletics. Although it wasn't called that in 2000.
The tilde is used to indicate allophones in free variation, e.g. [e] ~ [ɛ].
Wembley Arena
Yes, Wembley Arena
Basketball Arena, North Greenwich Arena, Riverbank Arena, Water Polo Arena, Wembley Arena.
It is mostly used for music concerts. It will also be used for some of the events at the London Olympics in 2012.
/t/ and /d/ are allophones of separate phonemes in English.
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Water Polo Arena
The O2 Arena, or North Greenwich Arena, as it was known during the recent Olympics, is an entertainment complex in London. It is mostly used for concerts, with many big entertainment names like Metallica, Rolling Stones and Beyonce performing there. Many sporting events are held there, from Tennis to Darts, as well as other entertainment events.
12
The Beijing National Stadium. (Bird Nest)
phoneme / / like f and v make a minimal pairs like fan-van but allophones [ ] cant found in minimal pairs but founded in complementary distribution