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clear as crystal

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*clear as crystal

 

1. Cliché very clear; transparent. (*Also: as ~.) The stream was as clear as crystal. She cleaned the windowpane until it was clear as crystal.

2. Cliché very clear; easy to understand. (*Also: as ~.) The explanation was as clear as crystal. Her lecture was not clear as crystal, but at least it was not dull.

See also: clear, crystal