A pump is a machine or device that is used to force a liquid or gas to flow in a particular direction.

To pump a liquid or gas in a particular direction means to force it to flow in that direction using a pump.

A petrol or gas pump is a machine with a tube attached to it that you use to fill a car with petrol.

If someone has their stomach pumped, doctors remove the contents of their stomach, for example because they have swallowed poison or drugs.

If you pump money or other resources into something such as a project or an industry, you invest a lot of money or resources in it.

If you pump someone about something, you keep asking them questions in order to get information.

To pump bullets into someone means to fire a lot of bullets into them very quickly.

Pumps are canvas shoes with flat rubber soles which people wear for sports and leisure.

Pumps are women's shoes that do not cover the top part of the foot and are usually made of plain leather.

To prime the pump means to do something to encourage the success or growth of something, especially the economy.