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k

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Symbol.

Mathematics. a vector on the z-axis, having length 1 unit.

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Definition for k (2 of 8)

K1

or k

[ key ]
/ keɪ /

noun, plural K's or Ks, k's or ks.

the eleventh letter of the English alphabet, a consonant.
any sound represented by the letter K or k, as in bilk, kit, or sick.
something having the shape of a K.
a written or printed representation of the letter K or k.
a device, as a printer's type, for reproducing the letter K or k.

Definition for k (3 of 8)

K2

abbreviation

the number 1000: The salary offered is $20K.

Origin of K

2
Abbreviation of kilo-

Definition for k (4 of 8)

K3

abbreviation

Chess. king.
Physics. Kelvin.
kindergarten: a K–12 boarding school.
Real Estate. kitchen.

Definition for k (5 of 8)

K4

Symbol.

the eleventh in order or in a series, or, when I is omitted, the tenth.
Computers.
  1. the number 1024 or 210: A binary 32K memory has 32,768 positions.
  2. kilobyte.
Baseball. strikeout; strikeouts.
Physics. kaon.
Biochemistry. lysine.
Chemistry. potassium.

Definition for k (6 of 8)

K

abbreviation Ecology.

carrying capacity.

Definition for k (7 of 8)

k.

abbreviation

Definition for k (8 of 8)

K.

abbreviation

kip; kips.
Knight.
kwacha.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for k (1 of 4)

k

symbol for

kilo(s)
maths the unit vector along the z-axis

British Dictionary definitions for k (2 of 4)

k

K

/ (keɪ) /

noun plural k's, K's or Ks

the 11th letter and 8th consonant of the modern English alphabet
a speech sound represented by this letter, usually a voiceless velar stop, as in kitten

British Dictionary definitions for k (3 of 4)

K

K.


abbreviation for

Köchel: indicating the serial number in the catalogue (1862) of the works of Mozart made by Ludwig von Köchel (1800–77)

British Dictionary definitions for k (4 of 4)

K

symbol for

abbreviation for

Cambodia (international car registration)
(for sense 3) from New Latin kalium; (for sense 6) from kilo-; (for sense 8) from Kampuchea
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for k (1 of 2)

K 22

abbr.

kelvin

Medical definitions for k (2 of 2)

K 11

The symbol for the elementpotassium
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for k

K

Abbreviation of kelvin
The symbol for potassium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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