puzzle
/ˈpʌzəl/
noun
Meaning
Anything that is difficult to understand or make sense of.
"Where he went after he left the house is a puzzle."
A game for one or more people that is more or less difficult to work out or complete.
A crossword puzzle.
A jigsaw puzzle.
A riddle.
Something made with marvellous skill; something of ingenious construction.
The state of being puzzled; perplexity.
"to be in a puzzle"
Synonyms
verb
Meaning
To perplex (someone).
To think long and carefully, in bewilderment.
"We puzzled over the curious-shaped lock, but were unable to discover how the key should be inserted."
To make intricate; to entangle.