Bolt

1. (noun) A (usually) metal fastener consisting of a cylindrical body that is threaded, with a larger head on one end. It can be inserted into an unthreaded hole up to the head, with a nut then threaded on the other end; a heavy machine screw. 2. (noun) A sliding pin or bar in a lock or latch mechanism. 3. (noun) A bar of wood or metal dropped in horizontal hooks on a door and adjoining wall or between the two sides of a double door, to prevent the door(s) from being forced open. 4. (noun) A sliding mechanism to chamber and unchamber a cartridge in a firearm. 5. (noun) A small personal-armour-piercing missile for short-range use, or (in common usage though deprecated by experts) a short arrow, intended to be shot from a crossbow or a catapult. 6. (noun) A lightning spark, i.e., a lightning bolt. 7. (noun) A sudden event, action or emotion. 8. (noun) A large roll of fabric or similar material, as a bolt of cloth. 9. (noun) A sudden spring or start; a sudden leap aside. 10. (noun) A sudden flight, as to escape creditors. 11. (noun) A refusal to support a nomination made by the party with which one has been connected; a breaking away from one's party. 12. (noun) An iron to fasten the legs of a prisoner; a shackle; a fetter. 13. (noun) A burst of speed or efficiency. 14. (verb) To connect or assemble pieces using a bolt. 15. (verb) To secure a door by locking or barring it. 16. (verb) To flee, to depart, to accelerate suddenly. 17. (verb) To cause to start or spring forth; to dislodge (an animal being hunted). 18. (verb) To strike or fall suddenly like a bolt. 19. (verb) To escape. 20. (verb) Of a plant, to grow quickly; to go to seed. 21. (verb) To swallow food without chewing it. 22. (verb) To drink one's drink very quickly; to down a drink. 23. (verb) To refuse to support a nomination made by a party or caucus with which one has been connected; to break away from a party. 24. (verb) To utter precipitately; to blurt or throw out. 25. (adverb) Suddenly; straight; unbendingly.