nounplural noun Ks, plural noun K's

• 1The eleventh letter of the alphabet.

  Synonyms

  thousand dollars, thousand pounds

  1. 1.1Denoting the next after J in a set of items, categories, etc.

abbreviation

• 1Kelvin(s).

• 2Computing
  Kilobyte(s).

• 3Kilometer(s).

• 4 informal OK.

  More example sentences

  • ‘K, I'm back’
• 5North American Kindergarten.

• 6King (used especially in describing play in card games and recording moves in chess)

  ‘declarer overruffed with ♦K and led another spade’

  More example sentences

  • ‘18.Ke2’
• 7Knit (as an instruction in knitting patterns)

  More example sentences

  • ‘K 42 rows’
• 8Köchel (catalog of Mozart's works)

  More example sentences

  • ‘the Sinfonia Concertante, K364’
• 9

  (also k)

  informal Thousand (used chiefly in expressing salaries or other sums of money).

  Origin

  From kilo- ‘thousand’.

• 10Baseball
  Strikeout.

• The chemical element potassium.

  Origin

  From modern Latin kalium.

abbreviation

• 1Karat.

• 2in combination (in units of measurement) kilo-

  More example sentences

  • ‘a distance of 700 kpc’
• 3Kopeck(s).

• 1A constant in a formula or equation.

• 2Chemistry
  Boltzmann's constant.