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How is "lot" pronounced in British English?I mean the ..on.. part.
In the phonetics of Longman dictionary its symbol in American pronunciation is ɑː and in the British it's ɒ.I know how to pronounce the word in American which is a somedeal long a but I can't figure out how to pronounce it in British English.
Thanks 
Comments  
Just add 'roundness' to the corresponding AmE vowe.
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But what is roundness?
 Kooyeen's reply was promoted to an answer.
Lip roudedness, I mean.

Check http://en.wikipedia.org/wiki/Roundedness
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