What is a multi-lane highway?

A multi-lane highway is a road with several lanes for traffic. Our motorways usually have 3 lanes which tend to be called the "slow" the "middle" and the "fast" lane, but these names are incorrect, although the slower traffic should keep to the "left" lane, whilst the other two lanes are "overtaking" lanes to enable faster vehicles to get on their way. Some highways in North America have as many as 8 lanes. Not the sort of road to be dithering as to which lane you should be in. A difference with American super highways is that drivers can pass other vehicles on the right or the left side.