adjective
(archaic) White or pale; without colour.
Free from writing, printing, or marks; having an empty space to be filled in.
(figurative) Lacking characteristics which give variety; uniform.
Abject; absolute; complete; downright; sheer; utter.
(figurative) Without expression, usually because of incomprehension.
Utterly confounded or discomfited.
Empty; void; without result; fruitless; futile.
Devoid of thoughts, memory, or inspiration.
(military) Of ammunition: having propellant but no bullets; unbulleted.
noun
(archaic, historical, obsolete) A small French coin, originally of silver, afterwards of copper, worth 5 deniers; also a silver coin of Henry V current in the parts of France then held by the English, worth about 8 pence .
(obsolete) A nonplus [16th century].
The white spot in the centre of a target; hence (figuratively) the object to which anything is directed or aimed, the range of such aim .
A lot by which nothing is gained; a ticket in a lottery on which no prize is indicated [since the 16th century].
An empty space; a void, for example on a paper .
(now chiefly US) A document, paper, or form with spaces left blank to be filled in at the pleasure of the person to whom it is given (e.g. a blank charter, ballot, form, contract, etc.), or as the event may determine; a blank form .
(literature) Blank verse .
(mechanics, engineering) A piece of material roughly cut, forged, cast, etc. to the size and shape of the thing to be made, and ready for the finishing operations; (coining) the disc of metal before stamping .
(figurative) A vacant space, place, or period; a void [since the 17th century].
The ¹ / ₂₃₀₄₀₀ of a grain [17th century].
An empty space in one's memory; a forgotten item or memory [since the 18th century].
A dash written in place of an omitted letter or word [since the 18th century]
The space character; the character resulting from pressing the space bar on a keyboard.
(dominoes) A domino without points on one or both of its divisions.
(Scrabble, Words With Friends) A tile that can be played as any letter and having a point value of zero.
(firearms) Ellipsis of blank cartridge [since the 19th century].
(figurative, in the expression ‘shooting blanks’, sports) An ineffective effort which achieves nothing [since the 20th century].
verb
(transitive) To make void; to erase.
(transitive, slang) To ignore (a person) deliberately.
(transitive, aviation, of a control surface) To render ineffective by blanketing with turbulent airflow, such as from aircraft wake or reverse thrust.
(transitive) To prevent from scoring; for example, in a sporting event.
(intransitive) To become blank.
(intransitive, informal) To experience a temporary lapse of memory; to be temporarily unable to remember a particular fact. (Commonly used in the first person, present progressive tense, and commonly followed by on to create a transitive phrasal verb.)