Definition: A natural or artificial removal of fluid from a given area by its draining away.

Alright class, settle down, let’s take a peek, At a word that’s important, simple and sleek! We’re talking about ‘drainage,’ hear me say, It's more than just water going astray. The dictionary tells us, clear as can be, “A natural or artificial removal of fluid, you see!” Think of a river, flowing free, Carrying water to the vast blue sea! That’s natural drainage, flowing along, Where water naturally goes, righting wrong. But sometimes we help, with pipes and with grace, Building artificial drainage in its place! Like ditches and canals, a clever design, To whisk away water, making landscapes shine. So ‘drainage’ means moving fluid away, Whether it flows freely or has a planned day! Does that make sense to you, my dear students bright? Any questions popping up with all your might?