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)