Meaning of K in English

K

I. K 1 BrE AmE , k /keɪ/ noun ( plural K’s , k’s ) [uncountable and countable]

the 11th letter of the alphabet

II. K 2 /keɪ/ BrE AmE

1 . ( also k ) informal an abbreviation of one thousand :

a salary of £30k a year

2 . an abbreviation of kilobyte or kilobytes

3 . ( also k ) a written abbreviation of kilometre or kilometres :

a 20k international race walker

4 . the abbreviation of Kelvin or Kelvins

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.