An aquifer is an underground accumulation of water.
groundwater
A geyser.
Futbol or as Americans call it, soccer!
An underground shelter is a good idea for tornadoes, but not for hurricanes. One of the main dangers during a hurricane is flooding, which would make underground the last place you want to be.
Americans call them 'The Subway', the British call them 'The Underground' or 'The Tube'.
The underground rail system - what Americans would call a subway system.
Underground railways are known, in the USA, as the subway.
Americans usually call a house "a house", sometimes "real estate".
the pavement
elevator
they call it that because it was underground and its was a rail road
What Americans call pants, the British would call trousers.
English people are actually people from England so people from America would be called Americans!
She helped African Americans and native Americans get the things and opportunities that Americans had.
Some Americans would call it a flashlight, although others may call it something else, entirely dependent on the the brand name. It just depends on the person.
sewerage