Shortage
In economics, a shortage or excess demand is a situation in which the demand for a product or service exceeds its supply in a market. It is the opposite of an excess supply (surplus).
Wikipedia
Lack (noun)
A defect or failing; moral or spiritual degeneracy.
Lack (noun)
A deficiency or need (of something desirable or necessary); an absence, want.
Lack (verb)
To be without, to need, to require.
“My life lacks excitement.”
Lack (verb)
To be short (of or for something).
“He’ll never lack for company while he’s got all that money.”
Lack (verb)
To be in want.
Lack (verb)
To see the deficiency in (someone or something); to find fault with, to malign, reproach.
Shortage (noun)
A lack or deficiency; an insufficient amount.
Wiktionary
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