boathouse

from WordNet (r) 3.0 (2006)

boathouse
    n 1: a shed at the edge of a river or lake; used to store boats

from The Collaborative International Dictionary of English v.0.48

Boathouse \Boat"house`\, n.
   A house for sheltering boats.
   [1913 Webster]

         Half the latticed boathouse hides.       --Wordsworth.
   [1913 Webster]