Definitions from Wiktionary ( )

▸ adjective:  Containing nothing; empty; not occupied or filled.
▸ adjective:  Having no incumbent; unoccupied; said of offices etc.
▸ adjective:  (with of) Being without; destitute; devoid.
▸ adjective:  Not producing any effect; ineffectual; vain.
▸ adjective:  Of no legal force or effect, incapable of confirmation or ratification.
▸ adjective:  Containing no immaterial quality; destitute of mind or soul.
▸ adjective:  (programming, of a function or method) That does not return a value; being a procedure rather than a function.
▸ adjective:  (bridge) Having no cards in a particular suit.
▸ noun:  An empty space; a vacuum.
▸ noun:  (astronomy) An extended region of space containing no galaxies.
▸ noun:  (materials science) A collection of adjacent vacancies inside a crystal lattice.
▸ noun:  (fluid mechanics) A pocket of vapour inside a fluid flow, created by cavitation.
▸ noun:  (construction) An empty space between floors or walls, including false separations and planned gaps between a building and its facade.
▸ noun:  (Internet slang, humorous, endearing) A black cat.
▸ noun:  An empty place; a location that has nothing useful.
▸ noun:  (bridge) The lack of cards in a particular suit.
▸ noun:  A cavity or empty space caused by water erosion.
▸ verb:  (transitive) To make invalid or worthless.
▸ verb:  (transitive, medicine) Synonym of empty (verb).
▸ verb:  To throw or send out; to evacuate; to emit; to discharge.
▸ verb:  (intransitive, obsolete) To withdraw, depart.
▸ verb:  (transitive, obsolete) To remove the contents of; to make or leave vacant or empty; to quit; to leave.
▸ noun:  (now rare, historical) A voidee.

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