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Added 9 October 2026

k

/keɪ/ letter

letter Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about k at Wordnik → Where our words come from →

The eleventh letter of the basic modern Latin alphabet.

symbol

A voiceless velar plosive.
The permeability of a material for fluids.
The spring constant of an elastic material.

noun

1000 (thousand)
5k = 5000; 5K = 5000

letter

The eleventh letter of the English alphabet, called kay and written in the Latin script.
The first letter of callsigns allocated to American broadcast television and radio stations west of the Mississippi river.

Origin

From kilo-.

From Wiktionary, via Kaikki.org (CC BY-SA)

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