Depressurize (verb)

1. To reduce the pressure in a sealed or pressurized container or system.
2. To decrease the pressure in a closed area or container.

Origin:

Late 19th century: from de- (expressing reversal) + pressurize.

Examples:

1. The cabin of the airplane was depressurized before landing.
2. It is important to depressurize the can before opening it to prevent injury.
3. The scuba diver needs to depressurize before ascending to the surface.
4. The depressurization of the pipeline caused a leak.
5. The airlock needs to be depressurized before exiting the spacecraft.