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See also: los, löss, and løss


Etymology 1[edit]

From Middle English los, from Old English los (damage, destruction, loss), from Proto-Germanic *lusą (dissolution, break-up, loss), from Proto-Indo-European *lews- (to cut, sunder, separate, loose, lose). Cognate with Icelandic los (dissolution, looseness, break-up), Old English lor, forlor (loss, ruin), Middle High German verlor (loss, ruin). More at lose.



loss (countable and uncountable, plural losses)

  1. an instance of losing, such as a defeat
    The match ended in their first loss of the season.
  2. The result of an alteration in a function or characteristic of the body, or of its previous integrity.
    Loss of an arm ; loss of weight ; loss of cognitive functions ; loss of appetite.
    In other areas, glacier loss creates serious risk of a dry period across the Third Pole, Wang said.
  3. the hurtful condition of having lost something or someone, particularly in death.
    We mourn his loss.
  4. (in the plural) casualties, especially physically eliminated victims of violent conflict
    The battle was won, but losses were great.
  5. (financial) the sum an entity loses on balance
    The sum of expenditures and taxes minus total income is a loss, when this difference is positive.
  6. destruction, ruin
    It was a terrible crash: both cars were total losses
  7. (engineering) electricity of kinetic power expended without doing useful work
    The inefficiency of many old-fashioned power plants exceeds 60% loss before the subsequent losses during transport over the grid
Usage notes[edit]
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The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.

Etymology 2[edit]

Eye dialect spelling of lost, representing African American Vernacular English.



  1. (colloquial) Alternative spelling of lost




Borrowed from German Schloss.


loss (genitive lossi, partitive lossi)

  1. castle


This noun needs an inflection-table template.



Like Danish los and Norwegian loss, from Low German or Dutch los, from Middle Low German respectively Middle Dutch los, sidoform of Low German lōs respectively Dutch loos, cognate with Swedish lös.



  1. (indeclinable, predicatively, adverbially) loose, untied, off
    den kom loss
    it came off