A crossword puzzle is a popular word game that involves filling in words in a grid by solving clues. It goes by different names depending on where you are from. In the United States, some synonyms for crossword puzzle include "crossword," "crossword game," or simply "the crossword." Meanwhile, in the United Kingdom, other synonyms for crossword puzzle include the relatively more complicated "cryptic crossword," "word square," and "cross word puzzle." Regardless of what you call it, crossword puzzles have become a beloved pastime for people of all ages and backgrounds, and it's no wonder why. They can be both challenging and relaxing at the same time.