k

K, k

[key]
noun, plural 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.
Dictionary.com Unabridged

K

1
the number 1000: The salary offered is $20K.

Origin:
abbreviation of kilo-

K

2
1.
Chess. king.
2.
Physics. Kelvin.
3.
4.
kindergarten : a K–12 boarding school.
5.
Real Estate. kitchen.

K

1
Symbol.
Chemistry, potassium.

Origin:
< Neo-Latin kalium

K

2
Symbol.
1.
the eleventh in order or in a series, or, when I is omitted, the tenth.
2.
Computers.
a.
the number 1024 or 2 10 : A binary 32K memory has 32,768 positions.
b.
kilobyte.
3.
Baseball. strikeout; strikeouts.
4.
Physics. kaon.
5.
Biochemistry, lysine.

K

Ecology.
carrying capacity.

k

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

K.

1.
kip; kips.

k.

1.
Electricity, capacity.
3.
kilogram; kilograms.
4.
Chess. king.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
k or K (keɪ)
 
n , pl k's, K's, Ks
1.  the 11th letter and 8th consonant of the modern English alphabet
2.  a speech sound represented by this letter, usually a voiceless velar stop, as in kitten
3.  See five Ks
 
K or K
 
n

k
 
symbol for
1.  kilo(s)
2.  maths the unit vector along the z-axis

K
 
symbol for, —abbreviation for
1.  kelvin(s)
2.  chess king
3.  chem potassium
4.  physics kaon
5.  currency
 a.  kina
 b.  kip
 c.  kopeck
 d.  kwacha
 e.  kyat
6.  one thousand
7.  computing
 a.  a unit of 1024 words, bits, or bytes
 b.  (not in technical usage) 1000
8.  Cambodia (international car registration)
 
symbol for, —abbreviation for
1.  kelvin(s)
2.  chess king
3.  chem potassium
4.  physics kaon
5.  currency
 a.  kina
 b.  kip
 c.  kopeck
 d.  kwacha
 e.  kyat
6.  one thousand
7.  computing
 a.  a unit of 1024 words, bits, or bytes
 b.  (not in technical usage) 1000
8.  Cambodia (international car registration)
 
[(for sense 3) from New Latin kalium; (for sense 6) from kilo-; (for sense 8) from Kampuchea]

K or K.
 
abbreviation for
Köchel: indicating the serial number in the catalogue (1862) of the works of Mozart made by Ludwig von Köchel (1800--77)
 
K. or K.
 
abbreviation for

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

K
"one thousand dollars," 1970s, from kilo-. As an indication of "strikeout" in baseball scorekeeping, first recorded c.1880, said to be from last letter of struck, since first letter was already being used as abbreviation for sacrifice. The invention of the scorecard symbols is attributed to newspaperman
Henry Chadwick. K as a measure of capacity (esp. in computer memory) or number (esp. of salary), meaning "one thousand" is an abbrev. of kilo (q.v.).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

K 1

The symbol for the element potassium.

K 2
abbr.
Kelvin

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
K  
  1. Abbreviation of kelvin

  2. The symbol for potassium.


potassium   (pə-tās'ē-əm)  Pronunciation Key 
Symbol K
A soft, highly reactive, silvery-white metallic element of the alkali group occurring in nature only in compounds. It is essential for the growth of plants and is used especially in fertilizers and soaps. Atomic number 19; atomic weight 39.098; melting point 63.65°C; boiling point 774°C; specific gravity 0.862; valence 1. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang Dictionary

K definition

[ke]
  1. n.
    and kee; key; ki. [ki]a kilogram of cannabis. (Drugs.) : Well, how much is a ki?
  2. n.
    ketamine hydrochloride, a drug similar to LSD. (Drugs.) : You want to try this K. stuff?
  3. n.
    a thousand (of anything, such as dollars, bytes, etc.). : This car is worth at least twenty K.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
Cite This Source
FOLDOC
Computing Dictionary

K definition

unit
kilo-, a kilobyte. Used both as a spoken word and a written suffix, like meg and gig for megabyte and gigabyte.
See prefix.
[Jargon File]
(1995-09-29)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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American Heritage
Abbreviations & Acronyms
k
  1. karat

  2. 1000

K
  1. Cambodia (international vehicle ID)

  2. kaon

  3. Kelvin

  4. kicker

  5. kilobyte

  6. kindergarten

  7. king

  8. Kings

  9. knight

  10. 1,000

  11. 1,024 (the closest number to 1,000 that is a power of 2—used for certain measurements, such as bytes)

  12. potassium

  13. strikeout

k.
  1. kopek

  2. krona

  3. krone

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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