Kilometre

//kɪˈlɒmɪtə// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    An SI unit of length equal to 10³ metres. Symbol: km

    "Holonyms: megametre < gigametre < terametre < petametre"

  2. 2
    a metric unit of length equal to 1000 meters (or 0.621371 miles) wordnet

Antonyms

All antonyms

Example

More examples

"A three-person team is undertaking a 40,000-kilometre motorcycle journey from the Arctic Circle in Alaska to the southern tip of South America."

Etymology

Etymology tree Proto-Indo-European *ǵʰes- Proto-Indo-European *-lom Proto-Indo-European *ǵʰesliyoy Proto-Hellenic *kʰehliyoi Ancient Greek χίλιοι (khílioi)der. French kilo- Proto-Indo-European *meh₁- Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Hellenic *-tron Ancient Greek -τρον (-tron) Ancient Greek μέτρον (métron)der. Latin metrumbor. French mètre French kilomètrebor. English kilometre From French kilomètre, from Ancient Greek χίλιοι (khílioi, “thousand”) + μέτρον (métron, “measure”); equivalent to kilo- + metre.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.