quantityquan·ti·ty /ˈkwɒntətiˈkwɑːn-/ noun (plural quantities)1[countableC] an amount of something that can be counted or measuredA small quantity of our oil is sold to France.
Stock managers have raised huge quantities of cash.
Citrus fruits are grown but not in commercial quantities (=amounts large enough to be sold).
→ economic order quantity2[uncountableU] used to talk about how much of something there isThe quantity and quality of personnel is inadequate.
3in quantity in large amountsWe offer special prices if you buy in quantity.
4a known/an unknown quantity someone or something that people know something about or know very little aboutThe new director is a known quantity, having served as finance administrator to the company from 1986 to 90.
The administration of an annuity is an unknown quantity and the charge may rise from the current 1%.