The state of being free from obstruction or interference.
The state of being free from obscurities or opacity; distinctness of light, colour etc.
Mental or sensory distinctness; clarity of understanding, perception etc.
Anything that is difficult to understand or make sense of.
A riddle.
The state of being puzzled; perplexity.
A game for one or more people that is more or less difficult to work out or complete.
A jigsaw puzzle.
A crossword puzzle.
To think long and carefully, in bewilderment.
To perplex, confuse, or mystify; to cause (someone) to be faced with a mystery, without answers or an explanation.
To make intricate; to entangle.