What is the meaning of swan?

noun

• Stately heavy-bodied aquatic bird with very long neck and usually white plumage as adult.

verb

• To declare or affirm solemnly and formally as true.
  • usage: "Before God I swear I am innocent"
  • synonyms: affirm, verify, assert, avow, aver, swear
• Move about aimlessly or without any destination, often in search of food or employment.
  • usage: "The gypsies roamed the woods"; "roving vagabonds"; "the wandering Jew"; "The cattle roam across the prairie"; "the laborers drift from one town to the next"; "They rolled from town to town"
  • synonyms: roll, wander, stray, tramp, roam, cast, ramble, rove, range, drift, vagabond
• Sweep majestically.
  • usage: "Airplanes were swanning over the mountains"