noun

1. An empty space; a vacuum.

   “Nobody has crossed the void since one man died trying three hundred years ago; it's high time we had another go.”

2. An extended region of space containing no galaxies

3. A collection of adjacent vacancies inside a crystal lattice.

Synonyms: pore, bubble

verb

1. To make invalid or worthless.

   “He voided the check and returned it.”

2. To empty.

   “void one’s bowels”

3. To throw or send out; to evacuate; to emit; to discharge.

   “to void excrement”

Synonyms: evacuate, annul, cancel

adjective

1. Containing nothing; empty; not occupied or filled.

2. Having no incumbent; unoccupied; said of offices etc.

3. Being without; destitute; devoid.