General English

  • noun a long piece of metal with a screw, fastened with a round piece of metal called a nut
  • noun a long piece of metal which you slide into a hole to lock a door
  • verb to run fast suddenly
  • verb to run away from someone or something
  • verb to fasten something with a bolt


  • verb to produce flowers and seeds too early, as in the case of beetroot or lettuce

Cars & Driving

  • noun a piece of metal bar with a screw thread and a usually hexagonal head, for use with a nut or for screwing into a part with a matching female thread


  • An externally threaded, cylindrical fastening device fabricated from a rod, pin, or wire, with a round, square, or hexagonal head that projects beyond the circumference of the shank to facilitate gripping and turning. A threaded nut fits onto the end of a bolt and is tightened by the application of torque.
  • The protruding part of a lock that prevents a door from opening.
  • raw material used in the manufacture of shingles and shakes. A wedge-shaped split from a short length of log that is taken to a mill for manufacturing.
  • Short logs to be sawn for lumber or peeled for veneer.
  • Wood sections from which barrel staves are made.
  • A large roll of cloth or textile.
  • A single package containing two or more rolls of wallpaper.


  • noun part of the firing mechanism of a firearm, consisting of a movable metal block which houses the firing pin and which is used to push a round into the breech and then seal in the gases which are released when the round is fired


  • verb to leave, go away. A Valley Girl and teenagers’ expression usually denoting a leisurely departure.

Origin & History of “bolt”

In Old English, a bolt was an arrow, particularly of the short stout variety used in crossbows (hence the phrase shoot one’s bolt). The more familiar modern sense ‘fastening pin’ developed in the 13th century. The verbal sense ‘make a quick escape’ comes from the notion of firing a projectile. The word appears in other Germanic languages (for instance German bolz ‘bolt’), but its ultimate origin is unknown.