From The Collaborative International Dictionary of English v.0.48:
Blank \Blank\, n. 1. Any void space; a void space on paper, or in any written instrument; an interval void of consciousness, action, result, etc; a void. [1913 Webster]
I can not write a paper full, I used to do; and yet I will not forgive a blank of half an inch from you. --Swift. [1913 Webster]
From this time there ensues a long blank in the history of French legislation. --Hallam. [1913 Webster]
I was ill. I can't tell how long -- it was a blank. --G. Eliot. [1913 Webster]
2. A lot by which nothing is gained; a ticket in a lottery on which no prize is indicated. [1913 Webster]
In Fortune's lottery lies A heap of blanks, like this, for one small prize. --Dryden. [1913 Webster]
3. A paper unwritten; a paper without marks or characters a blank ballot; -- especially, a paper on which are to be inserted designated items of information, for which spaces are left vacant; a bland form. [1913 Webster]
The freemen signified their approbation by an inscribed vote, and their dissent by a blank. --Palfrey. [1913 Webster]
4. A paper containing the substance of a legal instrument, as a deed, release, writ, or execution, with spaces left to be filled with names, date, descriptions, etc. [1913 Webster]
5. The point aimed at in a target, marked with a white spot; hence, the object to which anything is directed. [1913 Webster]
Let me still remain The true blank of thine eye. --Shak. [1913 Webster]
6. Aim; shot; range. [Obs.] [1913 Webster]
I have stood . . . within the blank of his displeasure For my free speech. --Shak. [1913 Webster]
7. 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. [1913 Webster]
8. (Mech.) A piece of metal prepared to be made into something by a further operation, as a coin, screw, nuts. [1913 Webster]
9. (Dominoes) A piece or division of a piece, without spots; as, the "double blank"; the "six blank." [1913 Webster]
In blank, with an essential portion to be supplied by another; as, to make out a check in blank. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Blank \Blank\, a. [OE. blank, blonc, blaunc, blaunche, fr. F. blanc, fem. blanche, fr. OHG. blanch shining, bright, white, G. blank; akin to E. blink, cf. also AS. blanc white. ?98. See Blink, and cf. 1st Blanch.] [1913 Webster] 1. Of a white or pale color; without color. [1913 Webster]
To the blank moon Her office they prescribed. --Milton. [1913 Webster]
2. Free from writing, printing, or marks; having an empty space to be filled in with some special writing; -- said of checks, official documents, etc.; as, blank paper; a blank check; a blank ballot. [1913 Webster]
3. Utterly confounded or discomfited. [1913 Webster]
Adam . . . astonied stood, and blank. --Milton. [1913 Webster]
4. Empty; void; without result; fruitless; as, a blank space; a blank day. [1913 Webster]
5. Lacking characteristics which give variety; as, a blank desert; a blank wall; destitute of interests, affections, hopes, etc.; as, to live a blank existence; destitute of sensations; as, blank unconsciousness. [1913 Webster]
6. Lacking animation and intelligence, or their associated characteristics, as expression of face, look, etc.; expressionless; vacant. "Blank and horror-stricken faces." --C. Kingsley. [1913 Webster]
The blank . . . glance of a half returned consciousness. --G. Eliot. [1913 Webster]
7. Absolute; downright; unmixed; as, blank terror. [1913 Webster]
Blank bar (Law), a plea put in to oblige the plaintiff in an action of trespass to assign the certain place where the trespass was committed; -- called also common bar.
Blank cartridge, a cartridge containing no ball.
Blank deed. See Deed.
Blank door, or Blank window (Arch.), a depression in a wall of the size of a door or window, either for symmetrical effect, or for the more convenient insertion of a door or window at a future time, should it be needed.
Blank indorsement (Law), an indorsement which omits the name of the person in whose favor it is made; it is usually made by simply writing the name of the indorser on the back of the bill.
Blank line (Print.), a vacant space of the breadth of a line, on a printed page; a line of quadrats.
Blank tire (Mech.), a tire without a flange.
Blank tooling. See Blind tooling, under Blind.
Blank verse. See under Verse.
Blank wall, a wall in which there is no opening; a dead wall. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Blank \Blank\, v. t. [imp. & p. p. Blanked; p. pr. & vb. n. Blanking.] [Cf. 3d Blanch.] 1. To make void; to annul. [Obs.] --Spenser. [1913 Webster]
2. To blanch; to make blank; to damp the spirits of; to dispirit or confuse. [Obs.] [1913 Webster]
Each opposite that blanks the face of joy. --Shak. [1913 Webster]