noun
A conduit allowing liquid to flow out of an otherwise contained volume; a plughole (UK)
The drain in the kitchen sink is clogged.
An extreme version of vorticity is a vortex. The vortex is a spinning, cyclonic mass of fluid, which can be observed in the rotation of water going down a drain, as well as in smoke rings, tornados and hurricanes.
An access point or conduit for rainwater that drains directly downstream in a (drainage) basin without going through sewers or water treatment in order to prevent or belay floods.
A natural or artificial watercourse which drains a tract of land.
Saganing Drain, Vermuyden's Drain, the South Drain river, Najafgarh drain
[…] the little runs and drains, that come through the hills, and to the sources of the creeks and their branches.
Something consuming resources and providing nothing in return.
That rental property is a drain on our finances.
An act of urination.
verb
To lose liquid.
The clogged sink drained slowly.
Knock knock. / Who’s there? / Dwayne. / Dwayne who? / Drain the bathtub, I’m drowning.
To flow gradually.
The water of low ground drains off.
To cause liquid to flow out of.
Please drain the sink. It’s full of dirty water.
To convert a perennially wet place into a dry one.
They had to drain the swampy land before the parking lot could be built.
To deplete of energy or resources.
The stress of this job is really draining me.
name
A surname.
A city in Douglas County, Oregon, United States.