pump
noun
°A device for moving or compressing a liquid or gas.
"This pump can deliver 100 gallons of water per minute."
°An instance of the action of a pump; one stroke of a pump; any action similar to pumping.
"It takes thirty pumps to get 10 litres ; he did 50 pumps of the weights."
verb
°To use a pump to move (liquid or gas).
°(often followed by up) To fill with air.
synonyms: plimsoll, sneaker, trainer