drain
/dɹeɪn/noun
Definitions
A conduit allowing liquid to flow out of an otherwise contained volume; a plughole (UK)
Example: The drain in the kitchen sink is clogged.
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.
Something consuming resources and providing nothing in return.
Example: That rental property is a drain on our finances.
An act of urination.
verb
Definitions
To lose liquid.
Example: The clogged sink drained slowly.
To flow gradually.
Example: The water of low ground drains off.
To cause liquid to flow out of.
Example: Please drain the sink. It's full of dirty water.
To convert a perennially wet place into a dry one.
Example: They had to drain the swampy land before the parking lot could be built.