A cloud is a mass of tiny water droplets or ice crystals floating in the sky. Clouds can bring shade, rain, snow, or storms.
“Cloud” comes from Old English “clud,” meaning “rock” or “mass of stone.” The word shifted to the sky when people started using it for the big, solid-looking masses they saw above.
Clouds were originally “sky-rocks” in English, because people saw them as solid lumps hanging overhead. The modern “cloud” for internet storage borrows that same idea: something big, distant, and kind of mysterious above you.
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