Definition of Pump

to force a substance (i.e., liquid, gas) to move in a certain direction by force

Examples of Pump in a sentence

The little boy has just learned to pump gasoline into the car’s tank by squeezing the lever.  🔊

Because the tire is low on air, you will need to pump some into it before driving off.  🔊

The new mother uses a machine to pump breast milk into a bottle so that the baby can eat when she is away.  🔊

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