deficit
Americannoun
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the amount by which a sum of money falls short of the required amount.
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the amount by which expenditures or liabilities exceed income or assets.
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a lack or shortage; deficiency.
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a disadvantage, impairment, or handicap.
The team's major deficit is its poor pitching.
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a loss, as in the operation of a business.
noun
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the amount by which an actual sum is lower than that expected or required
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an excess of liabilities over assets
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an excess of expenditures over revenues during a certain period
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an excess of payments over receipts on the balance of payments
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Other Word Forms
Derived Forms
Etymology
Origin of deficit
First recorded in 1775–85; from Latin dēficit “(it) lacks,” 3rd-person singular present of dēficere “to fail, run short, lack, weaken”; see deficient
Explanation
If you're running a deficit, you are losing. You might be losing money or losing a game. Either way, you better make up for it. When the government runs on a deficit, often the loss can be offset by a raise in taxes. If you have a deficit of iron in your body, you should consider eating more spinach. The word deficit comes from the Latin deficit meaning "it is wanting." A deficit is characterized by the wanting of something missing.
Vocabulary lists containing deficit
Essential Academic Vocabulary for High School Students, List 2
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ACT Vocabulary List
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East Asia - Middle School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Deficit scolds’ warnings of a bond market ruction have been like waiting for Godot, some economists say.
From Barron's • Apr. 24, 2026
ADHD, Attention Deficit Hyperactivity Disorder, is a neuro-developmental condition which often causes impulsiveness and inattention.
From BBC • Dec. 22, 2025
For decades, researchers have observed that many earthquakes show far less movement at the surface than deep underground, a phenomenon known as the "Shallow Slip Deficit."
From Science Daily • Dec. 16, 2025
Deficit and debt levels were a concern, he added.
From Reuters • Sep. 13, 2023
Deficit tamen ratio habitus quantum ad usum voluntatis quia non habent dominium utendi vel non utendi, quod videtur ad rationem habitus pertinere; et ideo, proprie loquendo, in eis habitus esse non possunt.”—ibid., ad.
From Ontology or the Theory of Being by Coffey, Peter
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.