A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. a puzzle in which the solver deduces words suggested by numbered clues and writes them into corresponding boxes in a grid to form a vertical and horizontalYou won't just learn new words when you complete crossword puzzles regularly; you'll also learn new things in general, especially if you work with other people to solve difficult puzzles. Most crossword puzzles contain a wide variety of trivia.