What does «vaciar» mean in Spanish?

To leave empty some vessel or other thing. U. t. c.prnl.

Examples of use in Spanish: "vaciar una botella"; "vaciar el bolsillo".
To take out, pour out or throw out the contents of a vessel or other thing. U. t. c. prnl.

Examples of use in Spanish: "vaciar agua en la calle".
To form an object by pouring molten metal or other soft material into a hollow mold.
To form a hole in something.
To take a very sharp edge on the stone of delicate cutting instruments.
Speaking of rivers or streams, drain.
To say without hesitation what one should keep quiet or keep secret.