Underground railways are known, in the USA, as the subway.
Americans call them 'The Subway', the British call them 'The Underground' or 'The Tube'.
Americans would likely refer to the Underground as the subway or the metro, depending on the region.
The underground rail system - what Americans would call a subway system.
they call it that because it was underground and its was a rail road
Americans call a thong a thong.
Dungeon
they call Americans Pigs
Americans call a tap a FAUCET. Your welcome!
An aquifer is an underground accumulation of water.
Americans call jelly, JELLO, and our jam they call jelly. Weird i know.
we call them Indians but they prefer native Americans
they don't