London
In short
London is the capital and largest city of England and the United Kingdom. It sits on the River Thames in southeast England and serves as a global hub for finance and culture.
In plain words
It is a massive city where millions of people live and work. It contains famous landmarks and is the centre for the UK's government and economy.
A simple example
A person might travel to the City of London to work in a bank or visit the City of Westminster to see Parliament.
Why it matters
As a major global city, it influences international politics, trade, and fashion. It is one of the most important economic centres in the world.
Easy to mix up
Do not confuse the entire city of London with the 'City of London', which is the small, historic financial district at its heart.