deficit-n; 2 Senses

Sense Number 1: a shortage of a requirement or asset

Commentary: DEFICIT[+quantity][+amount][+shortage][+asset/+requirement/+score]

The US trade deficit widened last month.
The government used deficit spending to stimulate the economy.
The drought has resulted in a deficit of grain production this year.
Federal deficits can cause inflation.
Their team came back from a three-game deficit to win the play-offs.
The runner apparently collapsed from an oxygen deficit.
That airline has been operating at a deficit for years. (more cost than revenue)

WordNet 3.0 Sense Numbers: 1, 3, 4

Sense Number 2: an impairment of function or ability

Commentary: DEFICIT[+state][+impairment][+physical/+mental]

Jane is studying attention deficit disorder.
Their child apparently has some linguistic deficits.
Since the car accident, the man has exhibited extensive memory deficit.
Forrest Gump overcame his learning deficit through hard work and perseverance.

WordNet 3.0 Sense Numbers: 2