Synonyms of 'deficit'
shortfallDictionary, shortage, deficiency
They're ready to cut the budget deficit for the next fiscal year.
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The other team failed to turn up so we won by default.
Deficiency in something, especially something that your body needs, is not having enough of it.
They did tests for signs of vitamin deficiency.
Thesaurus for deficit from the Collins English Thesaurus
A deficit is the amount by which something is less than what is required or expected, especially the amount by which the total money received is less than the total money spent .