popular form of word puzzle. A crossword puzzle consists of a diagram, usually rectangular, divided into blank (white) and cancelled (black, shaded, ... [2 related articles] Found on http://www.britannica.com/eb/a-z/c/162
a puzzle in which words corresponding to numbered clues or definitions are supplied and fitted into correspondingly numbered sets of squares, one letter per square, the words being arranged horizontally or vertically so that most letters form part of two words. Found on https://www.infoplease.com/dictionary/crossword-puzzle