1. Covered with heavy steel
   - armor-clad [US], armour-clad [Brit, Cdn], armor-plated [US], armour-plated [Brit, Cdn]

See also: armored [US], armoured [Brit, Cdn]

• speed trap
• speed-reading
• speedball
• speedboat
• speeder
• speedily
• speediness
• speeding
• speeding ticket
• speedo
• speedometer
• speedskater
• speedster
• speedup
• speedway
• speedwell
• speedy
• Speer
• speiss
• Speke
• spelaeologist
• spelaeology
• speleologist
• speleology
• spell