The Collaborative International Dictionary of English v.0.48:

Chopin \Chop"in\, n. [F. chopine, fr. G. schoppen.]
   A liquid measure formerly used in France and Great Britain,
   varying from half a pint to a wine quart.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Chopin \Chop"in\, n.
   See Chopine.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Chopine \Cho*pine"\, n. [Cf. OF. chapin, escapin, Sp. chapin,
   Pg. chapim.]
   A clog, or patten, having a very thick sole, or in some cases
   raised upon a stilt to a height of a foot or more. [Variously
   spelt chioppine, chopin, etc.]
   [1913 Webster]

         Your ladyship is nearer to heaven than when I saw you
         last, by the altitude of a chopine.      --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Chopin
    n 1: the music of Chopin; "he practiced Chopin day and night"
    2: United States writer who described Creole life in Louisiana
       (1851-1904) [syn: Chopin, Kate Chopin, Kate O'Flaherty
       Chopin]
    3: French composer (born in Poland) and pianist of the romantic
       school (1810-1849) [syn: Chopin, Frederic Francois
       Chopin]