1puz·zle 
/ˈpʌzəl/ noun
plural puz·zles /ˈpʌzəl/ noun [count] 1 a : a question or problem that requires thought, skill, or cleverness to be answered or solved
▪ a book of puns, riddles, and puzzles — see also crossword puzzle
b : jigsaw puzzle — often used figuratively ▪ The restaurant is trying to attract more customers, and the new menu is an important piece of the puzzle. [=an important part of what is being done] ▪ Researchers are close to finding a solution, but they haven't found the final pieces of the puzzle. 2 : something or someone that is difficult to understand — usually singular ▪ The cause of the explosion was a puzzle. [=no one knew what caused the explosion] ▪ His strange behavior is a puzzle to his friends. [=his friends don't understand the reason for his strange behavior]
▪ a book of puns, riddles, and puzzles — see also crossword puzzle
b : jigsaw puzzle — often used figuratively ▪ The restaurant is trying to attract more customers, and the new menu is an important piece of the puzzle. [=an important part of what is being done] ▪ Researchers are close to finding a solution, but they haven't found the final pieces of the puzzle.
