VisualLang
crys
tal
clear
(of an object) clear or thin enough for one to be able to see through it
The idiom "crystal clear" finds its origin in the clarity and transparency associated with high-quality crystals, particularly clear quartz. Crystals have long been admired for their purity and the way they allow light to pass through without distortion. This idiom is used to capture an object that does just that.
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