Longman Dictionary of Contemporary English - city

~ n 1 a large important town, especially one with a cathedral  (New York City | a capital city | city dweller (=someone who lives in a city)) 2 the people who live in a city  (The city has been living in fear since last week's earthquake.) 3 the City BrE the area of London which is Britain's financial centre, and the important institutions there  (City banker/stockbroker etc (=a banker etc who works in the city))  (- see also inner-city)