a Without color; lacking characteristics which give variety.
a Free from writing, printing, or marks; having an empty space to be filled in; as, blank paper; a blank check; a blank ballot.
a Without expression.
n A cartridge that is designed to simulate the noise and smoke of real gunfire without actually firing a projectile.
n A void space on a paper.
n A space to be filled in on a form or template.
n (archaic) A kind of base silver money, first coined in England by Henry V., and worth about 8 pence; also, a French coin of the seventeenth century, worth about 4 pence. Nares.
n (engineering) A piece of metal prepared to be made into something by a further operation, as a coin, screw, nuts.
n (context|dominoes) A piece or division of a piece, without spots; as, the double blank"; the six blank." In blank, with an essential portion to be supplied by another; as, to make out a check in blank.
n The space character; the character resulting from pressing the space-bar on a keyboard.