1. Unusually large in scope
   "a large-scale attack on AIDS is needed" 
2. Constructed or drawn to a big scale
   "large-scale maps"

See also: big, large

• steely
• steelyard
• Steen
• steenbok
• steep
• steep-sided
• steepen
• steeper
• steepish
• steeple
• steeplechase
• steeplechaser
• steepled
• steeplejack
• steeply
• steepness
• steer
• steer roping
• steerable
• steerage
• steerageway
• steerer
• steering
• steering committee
• steering gear