Drain
The water or other liquid in (something) to run out, leaving it empty or dry:
cause or allow (liquid) to run off or out of something:
fry the pork and drain off any excess fat
make (land) drier by providing channels for water to flow away in:
the land was drained and the boggy ground reclaimed
(of a river) carry off the superfluous water from (an area):
the stream drains a wide moorland above the waterfall
[no object, with adverbial of direction] (of water or another liquid) flow away from, out of, or into something:
the river drains into the Pacific
Polly felt the blood drain from her face
[no object] become dry or drier as liquid runs off or away:
drink the entire contents of (a glass or other container):
the stranger drained his glass of beer