Meaning of swan

swan

1. any of several large, stately aquatic birds of the subfamily Anserinae, having a long, slender neck and usually pure-white plumage in the adult. Cf.
2. a person or thing of unusual beauty, excellence, purity, or the like.
3. a person who sings sweetly or a poet.
4. (cap.)the constellation Cygnus.

swan

1. to swear or declare (used with I): Well, I swan, I never expected to see you here!

Swan

1. 1828–1914, British chemist, electrical engineer, and inventor.