To affirm something formally, under oath.
To substantiate or prove the truth of something.
To confirm or test the truth or accuracy of something.
To make invalid or worthless.
To throw or send out; to evacuate; to emit; to discharge.
To empty.
An empty place; A location that has nothing useful.
An empty space; a vacuum.
A collection of adjacent vacancies inside a crystal lattice.
A pocket of vapour inside a fluid flow, created by cavitation.
An extended region of space containing no galaxies.
An empty space between floors or walls, including false separations and planned gaps between a building and its facade.
A black cat.
That does not return a value; a procedure.
Containing nothing; empty; not occupied or filled.
Having no incumbent; unoccupied; said of offices etc.
Being without; destitute; devoid.
Containing no immaterial quality; destitute of mind or soul.
Not producing any effect; ineffectual; vain.
Of no legal force or effect, incapable of confirmation or ratification.