drawbridge
UK: ˈdrɔːbrɪdʒ | US: ˈdrɔːbrɪdʒ
n. a bridge that can be raised or lowered to allow or prevent passage, especially over a moat at the entrance to a castle or fort.
The word "drawbridge" originates from Middle English drawebrigge, combining "draw" (from Old English dragan, meaning "to pull") and "bridge" (from Old English brycg). The term reflects the mechanical function of the bridge: it is "drawn" (pulled) upward to block entry or lowered to permit crossing. This design was pivotal in medieval fortifications, where control over access was critical for defense.
The castle's drawbridge was raised at night to protect against invaders.
Visitors marveled at the ancient drawbridge spanning the moat.
The knight signaled for the drawbridge to be lowered so his army could advance.
Modern drawbridges are often operated by hydraulic systems instead of chains.
A rusty chain creaked as the drawbridge slowly descended.