Blank area that separates words, sentences, syllables, or other written or printed glyphs; precise typographical rules differ according to language and context
A document, paper, or form with spaces left blank to be filled up 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 .
He said the space is the most important character in the alphabet