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1. Oxford American Dictionary

   bolt

   • IPA[bōlt]

   美式

   • n.
     a bar that slides into a socket to fasten a door or window.；a threaded pin that screws into a nut and is used to fasten things together.
   • v.
     fasten (a door or window) with a bar that slides into a socket；fasten (an object) to something else with a bolt
2. • 釋義
   • 片語

   n.

   名詞

   • 1. a bar that slides into a socket to fasten a door or window. 同義詞 bar, lock, catch, latch, fastener, ... 更多hasp, pin
   • ▪ a threaded pin that screws into a nut and is used to fasten things together. 同義詞 rivet, pin, peg, screw
   • ▪ the sliding piece of the breech mechanism of a rifle.
   • ▪ (in rock climbing) a long pin that is driven into a rock face so that a rope can be attached to it.
   • 2. a short, heavy arrow shot from a crossbow. 同義詞 arrow, quarrel, dart, shaft, missile, ... 更多projectile, literaryreed
   • 3. a jagged white flash of lightning. 同義詞 flash, shaft, streak, burst, discharge, ... 更多flare, fulmination, archaiclevin

   v.

   動詞

   • 1. fasten (a door or window) with a bar that slides into a socket all the doors were locked and bolted 同義詞 lock, bar, fasten, latch, secure, ... 更多seal反義詞 unbolt, open
   • ▪ fasten (an object) to something else with a bolt the lid was put into position and bolted down a camera was bolted to the aircraft 同義詞 rivet, pin, clamp, peg, screw, ... 更多batten, pinion, fasten, fix, secure

   片語

   • a bolt from the blue
   • bolt upright
   • have shot one's bolt