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L, l

noun, plural L's or Ls, l's or ls.
  1. the 12th letter of the English alphabet, a consonant.
  2. any spoken sound represented by the letter L or l, as in let, dull, cradle.
  3. something having the shape of an L.
  4. a written or printed representation of the letter L or l.
  5. a device, as a printer's type, for reproducing the letter L or l.


noun, plural L's or Ls.
  1. ell1.


noun, plural L's or Ls. Informal.
  1. an elevated railroad.



  1. Licentiate in Surgery.
  2. Linnaean Society.
  3. the place of the seal, as on a document.

Origin of L.S.

(def 3) < Latin locus sigillī Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ls

Contemporary Examples of ls

Historical Examples of ls

British Dictionary definitions for ls


abbreviation for
  1. (on a document) the place of the seal

Word Origin for ls

from Latin locus sigilli


the internet domain name for
  1. Lesotho


abbreviation for
  1. Lesotho (international car registration)



noun plural l's, L's or Ls
  1. the 12th letter and ninth consonant of the modern English alphabet
  2. a speech sound represented by this letter, usually a lateral, as in label
    1. something shaped like an L
    2. (in combination)an L-shaped room


symbol for
  1. litre
  2. physics lepton number


symbol for
  1. ell (unit)
  2. lambert(s)
  3. large
  4. Latin
  5. (on British motor vehicles) learner driver
  6. physics length
  7. live
  8. currency
    1. poundUsually written: £
    2. lempira
    3. lek
    4. leu
    5. lire
  9. aeronautics lift
  10. electronics inductor (in circuit diagrams)
  11. physics latent heat
  12. physics self-inductance
  13. chem the Avogadro constant
  14. (Roman numeral) 50See Roman numerals
abbreviation for
  1. Luxembourg (international car registration)

Word Origin for L

(for sense 8a) Latin libra pound
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

Word Origin and History for ls


Roman letter, from Greek lambda, from Semitic lamed. The shape of the Roman letter is an early one in Greek, adopted before it was superseded in Greek by the inverted form which became the Greek lambda.

Online Etymology Dictionary, © 2010 Douglas Harper

ls in Medicine


  1. left
  2. limes (used with a lower case letter or a plus sign, or used with a subscript letter or plus sign as a symbol for various doses of toxin)
  3. or l liter
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

ls in Science


  1. Abbreviation of length, liter
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.