Stall

[Sarah]

when a driver in manual transmission drops the clutch too fast or put the car in too high a gear at low speeds and causes the engine of the car to shut off.

[Jason Yan]

[To go] or [wait] [somewhere] for someone/something.

[Britney]

To stop agressive speech/behavior toward an individual. Usually when such behavior is considered [unjustified] or questionable, stall is used as a request for the [agressor] to calm down [the rash] behavior.

[Kit]

[All the above] is true. Operationally, a stall happens when you slow [the airplane] down and increase the angle of attack over [the wing] so it is no longer producing lift. Student pilots practice doing them so they know how to get out.
It is not particularly dangerous to do stalls if you are careful about it, but I find them to be rather uncomfortable. There is a possibility of going into a spin if the pilot doesnt pay attention. But that, too, can be recovered from.

[Rihanna]

A stand, booth, or compartment for the sale of goods in a market or large covered area.

[Monty]

a large table or a small shop with an open front from which goods are sold in a public place:

[Renato]

Stall in Paragliding. Loss of lift due to increasing the angle of attack to the point where airflow separation occurs. Normally the result of flying too slowly.