"Depletion" Natural Recordings by Native Speakers
Depletion refers to the decrease or reduction in the amount or quantity of something, often to the point where it is no longer available or sufficient. This can apply to physical resources, such as water or natural resources, as well as abstract concepts, such as time or energy.
Deplaning is the act of getting off an airplane, typically after landing. It is the opposite of boarding, which is the act of getting on an airplane.