WordWeb Online

1. (usually plural) weather deck; the part of a ship's hull that is above the waterline
    
2. [Brit] Roast cut from the round; usually suitable for roasting
   - top round [N. Amer]

1. The highest or uppermost side of anything
   "only the top side of the box was painted";
   - top, upper side, upside

Derived forms: top sides, topsides

Type of: face, joint, roast, shelter deck, side, weather deck

Part of: ship

Encyclopedia: Topside, Wisconsin