Definitions
1.verbTo lose liquid."The clogged sink drained slowly."
2.verbTo flow gradually."The water of low ground drains off."
3.verbTo cause liquid to flow out of."Please drain the sink. It's full of dirty water."
4.verbTo convert a perennially wet place into a dry one."They had to drain the swampy land before the parking lot could be built."
5.verbTo deplete of energy or resources."The stress of this job is really draining me."
6.verbTo draw off by degrees; to cause to flow gradually out or off; hence, to exhaust.
7.verbTo filter.
8.verbTo fall off the bottom of the playfield.
9.adjectiveLacking motivation and energy; very tired; knackered."I felt so drained after that three-hour exam that I wanted to sleep for the next week."
10.adjectiveOf a battery, empty of charge; discharged.