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.]
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   1. Of a white or pale color; without color.
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            To the blank moon
            Her office they prescribed.           --Milton.
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   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.
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   3. Utterly confounded or discomfited.
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            Adam . . . astonied stood, and blank. --Milton.
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   4. Empty; void; without result; fruitless; as, a blank space;
      a blank day.
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   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.
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   6. Lacking animation and intelligence, or their associated
      characteristics, as expression of face, look, etc.;
      expressionless; vacant. "Blank and horror-stricken faces."
      --C. Kingsley.
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            The blank . . . glance of a half returned
            consciousness.                        --G. Eliot.
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   7. Absolute; downright; unmixed; as, blank terror.
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   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.
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The Collaborative International Dictionary of English v.0.48:

Door \Door\, n. [OE. dore, dure, AS. duru; akin to OS. dura,
   dor, D. deur, OHG. turi, door, tor gate, G. th["u]r, thor,
   Icel. dyrr, Dan. d["o]r, Sw. d["o]rr, Goth. daur, Lith.
   durys, Russ. dvere, Olr. dorus, L. fores, Gr. ?; cf. Skr.
   dur, dv[=a]ra. [root]246. Cf. Foreign.]
   1. An opening in the wall of a house or of an apartment, by
      which to go in and out; an entrance way.
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            To the same end, men several paths may tread,
            As many doors into one temple lead.   --Denham.
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   2. The frame or barrier of boards, or other material, usually
      turning on hinges, by which an entrance way into a house
      or apartment is closed and opened.
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            At last he came unto an iron door
            That fast was locked.                 --Spenser.
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   3. Passage; means of approach or access.
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            I am the door; by me if any man enter in, he shall
            be saved.                             --John x. 9.
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   4. An entrance way, but taken in the sense of the house or
      apartment to which it leads.
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            Martin's office is now the second door in the
            street.                               --Arbuthnot.
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   Blank door, Blind door, etc. (Arch.) See under Blank,
      Blind, etc.

   In doors, or Within doors, within the house.

   Next door to, near to; bordering on.
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            A riot unpunished is but next door to a tumult.
                                                  --L'Estrange.


   Out of doors, or Without doors, and, [colloquially], Out
   doors, out of the house; in open air; abroad; away; lost.
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            His imaginary title of fatherhood is out of doors.
                                                  --Locke.

   To lay (a fault, misfortune, etc.) at one's door, to charge
      one with a fault; to blame for.

   To lie at one's door, to be imputable or chargeable to.
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            If I have failed, the fault lies wholly at my door.
                                                  --Dryden.
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   Note: Door is used in an adjectival construction or as the
         first part of a compound (with or without the hyphen),
         as, door frame, doorbell or door bell, door knob or
         doorknob, door latch or doorlatch, door jamb, door
         handle, door mat, door panel.
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