loss

American  

[laws, los] / lɔs, lɒs /

noun

• losses
  plural

1. detriment, disadvantage, or deprivation from failure to keep, have, or get.

   to bear the loss of a robbery.

   Antonyms:

   gain

2. something that is lost.

   The painting was the greatest loss from the robbery.

3. an amount or number lost.

   The loss of life increased each day.

4. the state of being deprived of or of being without something that one has had.

   the loss of old friends.

   Synonyms:

   deprivation, privation

5. death, or the fact of being dead.

   to mourn the loss of a grandparent.

6. the accidental or inadvertent losing of something dropped, misplaced, stolen, etc..

   to discover the loss of a document.

7. a losing by defeat; failure to win.

   the loss of a bet.

8. failure to make good use of something, as time; waste.

9. failure to preserve or maintain.

   loss of engine speed at high altitudes.

10. destruction or ruin.

    the loss of a ship by fire.

11. a thing or a number of related things that are lost or destroyed to some extent.

    Most buildings in the burned district were a total loss.

12. Military.

    1. the losing of soldiers by death, capture, etc.

    2. Often losses. the number of soldiers so lost.

13. Insurance. occurrence of an event, as death or damage of property, for which the insurer makes indemnity under the terms of a policy.

14. Electricity. a measure of the power lost in a system, as by conversion to heat, expressed as a relation between power input and power output, as the ratio of or difference between the two quantities.

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idioms

1. at a loss,

   1. at less than cost; at a financial loss.

   2. in a state of bewilderment or uncertainty; puzzled; perplexed.

      We are completely at a loss for an answer to the problem.

loss British  

/ lɒs /

noun

1. the act or an instance of losing

2. the disadvantage or deprivation resulting from losing

   a loss of reputation

3. the person, thing, or amount lost

   a large loss

4. (plural) military personnel lost by death or capture

5. (sometimes plural) the amount by which the costs of a business transaction or operation exceed its revenue

6. a measure of the power lost in an electrical system expressed as the ratio of or difference between the input power and the output power

7. insurance

   1. an occurrence of something that has been insured against, thus giving rise to a claim by a policyholder

   2. the amount of the resulting claim

8. 1. uncertain what to do; bewildered

   2. rendered helpless (for lack of something)

      at a loss for words

   3. at less than the cost of buying, producing, or maintaining (something)

      the business ran at a loss for several years

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loss More Idioms  

1. see at a loss; cut one's losses; dead loss.

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Other Word Forms

Derived Forms

• preloss
  noun

Inflected Forms

Nouns

• losses
  plural

Etymology

Origin of loss

First recorded before 900; Middle English; Old English los “destruction”; cognate with Old Norse los “looseness, breakup”; cf. lose ( def. ), loose ( def. ), -less ( def. ), lorn ( def. )

Explanation

If you no longer have something, you experience a loss, like the loss of a favorite sock. When something lessens, or gets smaller, that's also a loss, as in weight loss. Loss has lots of opposites that help define what it means. It is the opposite of win, gain, found, or earn. You can take a loss in a game or a race or by misplacing or just plain losing something like a cell phone or money. When a business has more expenses than it can cover in sales, that, too, is called a loss. A difficult loss is when a friend, relative, or pet dies.

Example Sentences

See Examples For:

loss losses

One of the show’s consultants had experienced a similar loss, and their insights helped the writing staff find dramatic resonance.

From Los Angeles Times ● Aug. 10, 2026

“I’m at a loss of words to express the sorrow and the anger I have at the treatment you’ve been dealt by the system.”

From Salon ● Aug. 10, 2026

And in the past year 17 European countries increased compulsory levies, “leading to a loss of between one and six days of social and fiscal freedom,” the report says.

From The Wall Street Journal ● Aug. 9, 2026

A statement released on the 48-year-old's website said he "experienced significant blood loss" and his treatment and recovery would be a "long process".

From BBC ● Aug. 9, 2026

To some meaningful number of his investors, it looked as if Burry simply did not want to accept the judgment of the marketplace: He’d made a bad bet and was failing to accept his loss.

From "The Big Short" by Michael Lewis

While Meta has since laid off 1 in 10 of its employees, Anthropic's chief executive Dario Amodei has warned that as AI tools inevitably become more productive, it could mean, external even broader job losses.

From BBC ● Aug. 10, 2026

Before this latest streak, the Dodgers had done an admirable job of not piling up losses.

From Los Angeles Times ● Aug. 9, 2026

The material's ability to guide light with fewer losses may also have important applications in renewable energy.

From Science Daily ● Aug. 8, 2026

Peloton Interactive issued a muted revenue outlook for fiscal 2027 as subscriber losses continue to deepen, overshadowing fourth-quarter profit gains and virtually flat revenue.

From The Wall Street Journal ● Aug. 7, 2026

The Agency's spy hunters now had a lead on a possible mole and an explanation for all the losses the CIA had suffered since 1985.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau

Related Words

• accident
• casualty
• catastrophe
• cost
• damage
• debt
• defeat
• deficit
• destruction
• disaster
• failure
• fall
• injury
• markdown
• trouble