blank

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Devoid of writing, images, or marks.
• adjective Containing no information; unrecorded or erased: synonym: empty.
• adjective Having spaces for information to be provided; not completed or filled in.
• adjective Not having received final processing; unfinished.
• adjective Devoid of thought or impression.
• adjective Showing no expression, interest, or understanding; expressionless.
• adjective Devoid of activity or distinctive character; empty.
• adjective Absolute; complete.
• noun An empty space or place, especially an empty space on a document to be filled in.
• noun A document with one or more such spaces.
• noun Something without information or thought.
• noun Something showing no expression or understanding.
• noun A manufactured article of a standard shape or form that is ready for final processing, as by stamping or cutting.
• noun A blank cartridge.
• noun Something worthless, such as a losing lottery ticket.
• noun A mark, usually a dash (—), indicating the omission of a word or of a letter or letters.
• noun The white circle in the center of a target; a bull's-eye.
• noun Games An unmarked piece or portion of a piece, as a domino tile, whose value may be determined by the holder.
• intransitive verb To remove, as from view; obliterate.
• intransitive verb To block access to.
• intransitive verb Sports To prevent (an opponent) from scoring.
• intransitive verb To punch or stamp from flat stock, especially with a die.
• intransitive verb To become abstracted. Often used with out:
• intransitive verb To fail to find or remember something.
• intransitive verb To fade away.

from The Century Dictionary.

• To leave (a card) so that it must be played when the suit is led.
• . To make blank; make white or pale; blanch.
• . To confuse; put out of countenance; disconcert; nonplus.
• . To frustrate; make void; bring to naught.
• A common euphemistic substitute for damn, referring to the blank or dash which is commonly substituted in printing for that word when it is used as a profane expression.
• White or pale: as, “the blanc moon,”
• Pale from fear or terror; hence, dispirited; dejected; confounded; confused.
• Empty or unoccupied; void; bare.
• Specifically— Free from written or printed characters; not written upon: as, a blank book; blank paper; blank spaces.
• Not filled up: applied to legal, banking, commercial, or other forms: as, a blank check or order; a blank ballot; a blank bond.
• Of uniform surface; unrelieved or unbroken by ornament or opening: as, a blank wall.
• Empty of results, of interest, etc.: as, a blank outlook for the future.
• Without contents; especially, wanting some part necessary to completeness: as, blank cartridges, that is, cartridges containing powder but no ball.
• Vacant in expression; exhibiting perplexity, real or feigned; nonplussed; disconcerted.
• Complete; utter; unmitigated: as, “blank stupidity,”
• Unrimed: applied to verse, particularly to the heroic verse of five feet without rime, such as that commonly adopted in English dramatic and epic poetry.
• noun Any void space or vacant surface; a space from which something is absent or omitted; a void; a vacancy: as, a blank in one's memory; to leave blanks in writing.
• noun A piece of paper prepared for some special use, but without writing or printed matter on it.
• noun A form or document containing blank spaces; a document remaining incomplete till something essential is filled in.
• noun In parliamentary usage, provisional words printed in italics in a bill, the final form of which is to be settled in committee.
• noun A ticket in a lottery on which no prize is indicated; a lot by which nothing is gained.