noun
    
    plural puzzles
    
    [count] a question or problem that requires thought, skill, or cleverness to be answered or solved
    
    
    
    jigsaw puzzle - often used figuratively
    
    
    
    
    
    something or someone that is difficult to understand - usually singular
    
    
    
    
    
    verb
    
    puzzles; puzzled; puzzling
    
    [+ obj] :to confuse (someone) :to be difficult for (someone) to understand
    
    
    
    
    
    
    
    puzzle out
    
    [phrasal verb]
    
    puzzle (something) out or puzzle out (something) :to understand or find (something, such as the answer to a difficult problem) by careful thinking
    
    
    
    puzzle over
    
    [phrasal verb]
    
    puzzle over (something) :to think or worry for a long time about (something)