The Collaborative International Dictionary of English v.0.48:

Copland \Cop"land`\, n. [Cop + land.]
   A piece of ground terminating in a point or acute angle.
   [Obs.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

Copland
    n 1: United States composer who developed a distinctly American
         music (1900-1990) [syn: Copland, Aaron Copland]