deficit

deficit /ˈdɛfəsət/ noun
plural deficits
deficit
/ˈdɛfəsət/
noun
plural deficits
Britannica Dictionary definition of DEFICIT
[count]
1 
: an amount (such as an amount of money) that is less than the amount that is needed
— opposite surplus; see also trade deficit
2 
: the amount by which a person or team is behind in a game or contest
3 
chiefly US : a problem that causes a decrease in some ability — see also attention deficit disorder