puzzle
US /ˈpʌzəl/
・UK /'pʌzl/
A2
verb
- To be a challenge to understand; confuse
noun
- Something challenging to explain or understand
- Game requiring the player to find an answer
- Game with many pieces, e.g. forming a picture
- A problem requiring thought and skill to be solved
Examples
There is a puzzle about how the plant first came to Britain.
They're trying to solve the puzzle of how gravity works.