/ pluːm; NAmE / noun
1.
a cloud of sth that rises and curves upwards in the air :
a plume of smoke
2.
a large feather :
a black hat with an ostrich plume
3.
a group of feathers or long thin pieces of material tied together and often used as a decoration
—see also nom de plume
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WORD ORIGIN
late Middle English : from Old French , from Latin pluma down.