Definition

1. Noun:
   • A unit of length: "km" is an abbreviation for "kilometer," a metric unit of length equal to one thousand meters.

Usage

• "km" is used as a standard symbol or abbreviation in writing and measurement to denote distances.
• It is commonly used in maps, road signs, athletic events, and scientific contexts.
• It is typically written in lowercase ('km') and follows a numerical value (e.g., 5 km).

Examples

• Noun:
  • The distance between the two cities is 350 km.
  • She ran a 10 km race last weekend.
  • The speed limit on this highway is 100 km per hour.

Advanced Usage

• "km/h" or "km per hour": a unit of speed expressing the number of kilometers traveled in one hour.
  • The car was traveling at 60 km/h.

Variants and Related Words

• Kilometer (n): the full, unabbreviated form of "km."
  • The track is exactly one kilometer long.
• Kilometric (adj): relating to or measured in kilometers (less common).
  • The map provides kilometric distances.

Synonyms

• Kilometer: the full term for the same unit.
• Klick (n, informal): military slang for a kilometer.

Notes

• "km" is an international standard symbol. It is not typically used in spoken language as an abbreviation; the full word "kilometer" is spoken.
• In British English, the spelling "kilometre" is used, but the abbreviation "km" remains the same.

Noun

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