n. (also k) (pl. Ks or K's) the eleventh letter of the alphabet.
abbr. (also K.)
2 King, King's.
3 Koumlchel (catalogue of Mozart's works).
4 (also k) (prec. by a numeral) a Computing a unit of 1,024 (i.e. 2(10)) bytes or bits, or loosely 1,000. b 1,000.
Etymology: sense 4 as abbr. of KILO-
symb. Chem. the element potassium.
* * *K(keɪ)the eleventh letter of the alphabet in English and other modern languages, was an original letter of the Roman alphabet, taken from the Greek Kappa K, originally egkappa, from Phœnician and general Semitic Kaph
Useful english dictionary. 2012.