Origin: French suffix -age
Drainage has 2 different meanings across 1 category:
A natural or artificial removal of fluid from a given area by its draining away.
"The new system will improve drainage by directing excess rainwater away from the low-lying fields."
In plain English: Drainage is water that flows away from an area to prevent it from getting too wet.
"The heavy rain caused poor drainage in the yard, leaving large puddles behind."
Usage: Drainage refers to the process where water flows out of an area, such as through pipes in a sink or channels on farmland. Use this term when describing how liquids are removed rather than simply stating that something is dry.
The word drainage is formed by adding the suffix "-age" to the verb drain. This construction created a noun referring to the action or result of draining water away from an area.