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km

1 American  

abbreviation

  1. kilometer; kilometers.

km. 2 American  

abbreviation

  1. kilometer; kilometers.

  2. kingdom.

km 1 British  

symbol

  1. kilometre

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
km 2 British  

abbreviation

  1. Comoros

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
km Scientific  

  1. Abbreviation of kilometer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Since geologists first identified the formation in 2002, the three kilometer wide crater and its surrounding ring of circular faults spanning about 20 km have sparked intense debate.

From Science Daily • Mar. 11, 2026

The final medals from Milan-Cortina 2026 were awarded in the women's and men's 50 km mass start cross-country skiing events, before a tribute to the Games volunteers.

From BBC • Feb. 22, 2026

Temperatures reach their highest levels between 3000 and 4000 km above the clouds, while ion densities peak closer to 1000 km.

From Science Daily • Feb. 21, 2026

Among this vehicle’s podium finishes: the 1957 Tour de France and the 1958 Buenos Aires 1000 km.

From The Wall Street Journal • Feb. 16, 2026

Her face was puffy km all her crying, and she could not seem to stop sobbing about her father.

From "A Game of Thrones" by George R.R. Martin

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.