Pronunciation: (kā),[key] —n., —pl.K's or Ks, k's or ks. 1. the eleventh letter of the English alphabet, a consonant.
2. any sound represented by the letter K or k, as in bilk, kit, or sick. 3. something having the shape of a K. 4. a written or printed representation of the letter K or k. 5. a device, as a printer's type, for reproducing the letter K or k.
3. the number 1000: The salary offered is $20K. 4. Music.See Köchel listing. 5. kindergarten: a K–12 boarding school. 6. Real Estate.kitchen.
—Symbol. 1. the eleventh in order or in a series, or, when I is omitted, the tenth.
3. Computers. a. the number 1024 or 210: A binary 32K memory has 32,768 positions. b. kilobyte.
4. Baseball.strikeout; strikeouts.
Ecol. carrying capacity.
—Symbol. 1. Math.a vector on the z-axis, having length 1 unit.
2. See Boltzmann constant.