[1] : 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
see also:
in blank 

[2] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

in blank. this is generally applied to indorsements, as, indorsements in 
blank, which is one not restricted, made by the indorser simply writing his 
name. see indorsement. 

Blank >> B Words
Blank, definition of term: Blank
blank_pag1.html

Blank Verse >> B Words
Blank Verse, definition of term: Blank Verse
blank+verse_pag1.html

Blank Cheque >> B Words
Blank Cheque, definition of term: Blank Cheque
blank+cheque_pag1.html

Point Blank >> P Words
Point Blank, definition of term: Point Blank
point+blank_pag1.html