deficit

noun

def·​i·​cit ˈde-fə-sət 

 British also  di-ˈfi-sət,

 or  ˈdē-fə-sət

1

a(1)

: deficiency in amount or quality

a deficit in rainfall

(2)

: a lack or impairment in an ability or functional capacity

cognitive deficits

a hearing deficit

b

: disadvantage

scored two runs to overcome a 2–1 deficit

2

a

: an excess of expenditure over revenue

facing a deficit of $3 billion

raise taxes to help reduce the budget deficit

b

: a loss (see loss sense 4b) in business operations

the year's operating deficit

Synonyms

• crunch
• dearth
• deficiency
• drought
• drouth
• failure
• famine
• inadequacy
• inadequateness
• insufficiency
• lack
• lacuna
• paucity
• pinch
• poverty
• scantiness
• scarceness
• scarcity
• shortage
• undersupply
• want

Examples of deficit in a Sentence

The government is facing a deficit of $3 billion.

We will reduce the federal budget deficit.

The team overcame a four-point deficit to win the game.

She has a slight hearing deficit in her left ear.

Recent Examples on the Web

The deficit came despite a $28.8 million increase in revenue from the previous year, highlighting the challenging financial environment even central athletic departments face in today’s collegiate landscape. —Brian Roberts, Forbes, 13 Mar. 2025

If every country in the world had a surplus, who would have the deficit? —Sam Meredith, CNBC, 13 Mar. 2025

That doesn’t even mention Coffey’s 11-for-12 shooting from the free throw line in the second half to never let Taconic back within a seven-point deficit, nor Will Bostrom’s all-around play on both ends. —Tom Mulherin, Boston Herald, 12 Mar. 2025

During Trump's first term, his tax cuts for the ultra-rich exploded the deficit, and at the first sign of economic trouble, the economy stumbled. —Faisal Kutty, Newsweek, 12 Mar. 2025

Word History

Etymology

borrowed from French déficit, going back to Middle French, "item lacking in an inventory," borrowed from Latin dēficit "it is lacking," 3rd person singular present indicative of dēficere "to be lacking, run short, fail" — more at deficient

First Known Use

1782, in the meaning defined at sense 1a(1)

Phrases Containing deficit

• attention deficit disorder
• attention deficit hyperactivity disorder
• deficit spending
• trade deficit

Kids Definition

deficit

noun

def·​i·​cit ˈdef-ə-sət 

: a deficiency in amount

especially : an excess of expenses over income

Medical Definition

deficit

noun

de·​fi·​cit

ˈdef-(ə-)sət; British also di-ˈfis-ət, ˈdē-fə-sət

: a deficiency of a substance

a potassium deficit

also : a lack or impairment of a functional capacity

cognitive deficits