A crossword is a word puzzle that consists of a grid filled with blank squares. Players must fill in the squares with words based on clues provided for each row and column. The words intersect at certain letters, making it a fun challenge to figure out the correct answers. Crosswords can vary in difficulty, from easy puzzles found in daily newspapers to more complex ones in magazines. Many people enjoy solving crosswords as a way to exercise their minds and improve their vocabulary. They often feature themes, such as movies, history, or science, which can make the puzzle even more engaging. Solving a crossword can be a relaxing activity, often done with a cup of coffee or while commuting.