Dictionary

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.

A sliding pin or bar in a lock or latch mechanism.

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.

A sliding mechanism to chamber and unchamber a cartridge in a firearm.

To connect or assemble pieces using a bolt.

Example: Bolt the vice to the bench.

To secure a door by locking or barring it.

Example: Bolt the door.

To flee, to depart, to accelerate suddenly.

Example: Seeing the snake, the horse bolted.

To cause to start or spring forth; to dislodge (an animal being hunted).

Example: to bolt a rabbit

Suddenly; straight; unbendingly.

Example: The soldiers stood bolt upright for inspection.

A sieve, especially a long fine sieve used in milling for bolting flour and meal; a bolter.

To sift, especially through a cloth.

To sift the bran and germ from wheat flour.

Example: Graham flour is unbolted flour.

To separate, assort, refine, or purify by other means.

To discuss or argue privately, and for practice, as cases at law.