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: to press (something) tightly into a space or container
: to cause the air pressure inside (something, such as an airplane) to be the same as or close to the pressure of air on the Earth's surface
Full Definition of PRESSURIZE
: to confine the contents of under a pressure greater than that of the outside atmosphere; especially: to maintain near-normal atmospheric pressure in during high-altitude or spaceflight (as by means of a supercharger)
: to apply pressure to
: to design to withstand pressure
Examples of PRESSURIZE
A pump is used to pressurize the fuel.
The system that pressurizes the airplane's cabin failed to operate correctly.
Don't let them pressurize you to do anything you don't want to do.