What is the meaning of plume?

noun

• Anything that resembles a feather in shape or lightness.
  • usage: "a plume of smoke"; "grass with large plumes"
• A feather or cluster of feathers worn as an ornament.
• The light horny waterproof structure forming the external covering of birds.
  • synonyms: feather, plumage

verb

• Rip off; ask an unreasonable price.
  • synonyms: overcharge, soak, surcharge, gazump, fleece, pluck, rob, hook
• Be proud of.
  • usage: "He prides himself on making it into law school"
  • synonyms: pride, congratulate
• Deck with a plume.
  • usage: "a plumed helmet"
• Clean with one's bill.
  • usage: "The birds preened"
  • synonyms: preen
• Form a plume.
  • usage: "The chimneys were pluming the sky"; "The engine was pluming black smoke"
• Dress or groom with elaborate care.
  • usage: "She likes to dress when going to the opera"
  • synonyms: preen, primp, dress