5K

noun

A road race over 5 000 metres.

Meanings

noun5K (plural 5Ks)

plural 5Ks · alternative 5-K

  1. athleticsA road race over 5 000 metres.
    1 more example

    She stalked the family home to catch Sophie on a run, and then she lied and said she was a part of the 5K the family did in Jon's memory. Then, she wanted to leave a note (or maybe the memory card with that info on it) for Delilah, and then she chickened out. These aren't actions of a straight-thinking woman.

    2019 February 28, Lindsay Denninger, “Why You Might Be Wrong About Emma & Barbara Morgan On 'Million Little Things'”, in Bustle, archived from the original on 29 Mar 2023
  2. computingA display device or item of content with approximately 5,000 pixels in the horizontal axis.

Origin

From 5 (“the number five”) + K (“abbreviation for thousand”).

Full word history & related roots →
Cite this entry
APA

5K. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/5K

MLA

“5K.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/5K. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “5K,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/5K.

Source: 5K on Wiktionary, CC BY-SA 4.0.