Plume (n.) refers to a soft, feather-like structure or mass, especially a long, slender feather on a bird, or a rising column of smoke, water, or other substance. It can also denote an ornamental feather or plume in a helmet. In abstract use, it can describe any fluffy, plume-shaped formation or plume-like pattern. The term conveys elegance, lightness, and vertical extension in description.
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