quantity

The amount or number of something.

• Check the quantity of rice.
• We ordered large quantities of paper.
• What quantity do you need?

How to use it: quantity of something (We measured the quantity of water in the tank.)

Similar words: amount, number

Common phrases: large quantity, quantity of something

An amount of something whose exact size or number is not stated.

• We found a quantity of old wood.
• Add a small quantity of oil.
• A quantity of sand remained in the bucket.

How to use it: a quantity of something (They found a quantity of old coins.)

Similar words: amount

Common phrases: a quantity, a certain quantity

Something that can be measured or counted and expressed as a number.

• Mass is a physical quantity.
• Each quantity must be expressed in the correct units.
• Which quantities change during the experiment?

Common phrases: physical quantity, scalar quantity, vector quantity