noun

deficit

DEF-ih-sit/ˈdefɪsɪt/

An amount by which something falls short of what is needed or expected.

The three empty slots reveal a deficit in the row of coins.

A row of ten empty coin slots with only seven occupied, obvious shortfall relative to the full row.
Etymology

These pieces form a Latin verb meaning “fail” or “be deficient.” Its form meaning “it is wanting” introduced inventory clauses and became a noun for the amount missing.

In context

One Minute Economics0:46
a country spent 16% more than it collected which doesn't exactly sound sustainable especially since that money has to usually be borrowed thereby increasing the national debt deficit spending is one of the most politically charged topics
Budget Deficits (Deficit Spending) and Surpluses Defined, Explained & Compared in One Minute

More examples

  • A rainfall deficit leaves the fields unusually dry.
  • They overcome a ten-point deficit to win the game.
  • A calorie deficit means you consume less energy than you use.

Forms

deficit · deficits

deficient adjective — Having less than the necessary amount.

Similar words

shortfall
Similarly names the gap between actual and required amounts.
shortage
Emphasizes insufficient supply rather than the exact missing amount.