adj

• (with of) Being without; destitute; devoid.
  "Suppoſe they be in number infinit, Yet being voyd of Martiall diſcipline, All running headlong after greedie ſpoiles: […] Their careleſſe ſwords ſhal lanch their fellows throats And make vs triumph in their ouerthrow."
• (programming, of a function or method) That does not return a value; being a procedure rather than a function.
  "In particular, the roll method is void — it has no return value."
• (bridge) Having no cards in a particular suit.

noun

• (astronomy) An extended region of space containing no galaxies.
• (materials science) A collection of adjacent vacancies inside a crystal lattice.
• (fluid mechanics) A pocket of vapour inside a fluid flow, created by cavitation.
• (construction) An empty space between floors or walls, including false separations and planned gaps between a building and its facade.

verb

• (transitive) To make invalid or worthless.
  "Near-synonym: nullify"
• (transitive, medicine) Synonym of empty (verb).
  "void one’s bladder"
• (intransitive, obsolete) To withdraw; to depart.
  "BY than come in to the feld kynge Ban as fyers as a lyon[…]/ Ha a said kyng Lot we must be discomfyte / for yonder I see the moste valyaunt knyght of the world / and the man of the most renoume / for suche ij bretheren as is kyng Ban & kyng bors ar not lyuynge / wherfore we must nedes voyde or deye"
• (transitive, obsolete) To remove the contents of; to make or leave vacant or empty; to quit; to leave.
  "to void a table"

noun

• (now rare, historical) A voidee.
  "Late on the final evening, as the customary ‘void’ – spiced wine and sweetmeats – was served, more elaborate disguisings in the great hall culminated in the release of a flock of white doves."