Definition of London in English:

proper noun

• 1The capital of the United Kingdom, situated in south-eastern England on the River Thames; population (Greater London) 7,619,800 (est. 2008).

  London was settled as a river port and trading centre, called Londinium, shortly after the Roman invasion of AD 43, and, since the Middle Ages, has been a flourishing centre. It is divided administratively into the City of London, which is the country's financial centre, and thirty-two boroughs

• 2An industrial city in south-western Ontario, Canada, situated to the north of Lake Erie; population 353,395 (2006).