›[C]an amount or number of something, especially one that can be measured: quantity of sthA sudden surge in the quantity of stock available would almost certainly depress the price.huge/large/vast quantityAsian central banks have been buying huge quantities of Treasury bonds.in large/small quantitiesSupermarkets, being able to buy in large quantities, can offer their customers the best prices.
›[U]used to talk about how much there is of something, rather than its quality: Our focus is on quality, not quantity.While quantity is of course important, quality must remain the highest priority.
›[C or U]a large amount or number of something: Poorer people can't afford to bulk buy and save by purchasing in quantity.The sheer quantity of detail makes the book a valuable tool.a quantity of sthOfficers seized computer equipment as well as a quantity of cash and drugs in the raids.