Could someone please enlighten what the term 'pressure' means?

Question

I'm writing a story, and there is a part in which I describe a toy.

So, I say:

"It was a water game, which consisted of, after the toy is filled with water, pressing a button, which GENERATED PRESSURE, and trying to insert as many rings as possible into some spears"

The part I would like people to correct is the words in capital letters.

By 'pressure' I mean, that when you press the said button, some 'air bubbles' are generated.
I'm just not sure is the term 'pressure' is correctly used here, because I know that water also exerts pressure over any body, even when there are no 'currents' or other 'forces'...

So, is it correct to say 'generated pressure'? Or would it be better if I said 'generated AIR pressure? (Or should I simply say 'generated air bubbles'?)

***

(If you would like to correct my English, that would be fine as well...
I will have learned two things new, instead of one...)

Answer 1

Pressure is defined to be force/Area or the force acting over an area.

If the area is reduced then the pressure increases using the same same amount of force.

By "Generating Pressure" you exert a force over an defined area.

Answer 2

Pressure is force per unit area. The force can be due to any compressed medium such as air or water. Pressure result in motion if there is a pressure imbalance. That is more pressure on one side verses the other, such as when an object is exposed to a stream of water. A pump creates pressure, and a valve that results in a lowering of pressure in a container is said to "release" pressure.

Answer 3

I would said then "generates an air jet"
Generated is past tense.

I think you also mean "trying to place ans many rings as possible onto some spears"
Or they are not spears since you can not generally put something into a spear.

Answer 4

Pressure is force, if you lift it takes pressure, or push, blow up a ballon,water coming from a pipe has pressure