What is Non-void?

Non-void definition and meaning on Dictionary terms:
Law. having no legal force or effect; not legally binding or enforceable.
useless; ineffectual; vain.

devoid; destitute (usually followed by of): a life void of meaning.
without contents; empty.
without an incumbent, as an office.
Mathematics. (of a set) empty.
(in cards) having no cards in a suit.

an empty space; emptiness: He disappeared into the void.
something experienced as a loss or privation: His death left a great void in her life.

a gap or opening, as in a wall.
a vacancy; vacuum.
Typography. counter3(def 10).
(in cards) lack of cards in a suit: a void in clubs.

verb (used with object)
to make ineffectual; invalidate; nullify: to void a check.
to empty; discharge; evacuate: to void excrement.

to clear or empty (often followed by of): to void a chamber of occupants.
Archaic. to depart from; vacate.

verb (used without object)
to defecate or urinate.