Often misspelt as kilometer.
The kilometre (SI symbol: km) is a
unit of length in the metric system, equal to 1000 metres (kilo: being the SI prefix for 1000). It is now the measurement
unit used, officially, for expressing distances between geographical places on land, in most of the
world.
John was given a speeding
ticket last night; according to the police officer, he was travelling 60 kilometres per hour or km/h, over the speed limit.
The Tagus Bridge in Lisbon,
Portugal has a central span of 1.013 kilometres or km.