DictionaryAI

kilometer

noun
kuh-LAH-mi-ter/kəˈlɑmɪtəɹ/ki-LOM-i-tuh/kɪˈlɒmɪtə/

Pluralkilometers

UK spellingkilometre

1 meaning of kilometer

Practice

  1. 1
    nouncountable
    An SI unit of length equal to 1,000 meters, written with the symbol km.

    The village sits less than a kilometer from the border.

    Officials approved a 40-kilometer rail line linking the airport to downtown.

    Note

    The name joins kilo-, "thousand," to meter, and the symbol is a lowercase km, set after the number with a space and no period: 3 km. Before a noun the unit stays singular, as in a 34.2-kilometer pipeline or a 40-kilometer rail line. The word is also spelled kilometre, and in casual speech a kilometer can be a klick.

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Origin

Formed from the prefix kilo- and meter.