Examples: bolt in a Sentence. 1 a : a shaft or missile designed to be shot from a crossbow or catapult; especially : a short stout usually blunt-headed arrow. b : a lightning stroke; also : thunderbolt. 2 a : a wood or metal bar or rod used to fasten a door. b : the part of a lock that is shot or withdrawn by the key. a movable bar or rod that when slid into a socket fastens a door, gate, etc. the part of a lock that is shot from and drawn back into the case, as by the action of the key. any of several types of strong fastening rods, pins, or screws, usually threaded to receive a nut. a sudden dash, run, flight, or escape. To arrange or roll (lengths of cloth, for example) on or in a bolt. To eat (food) hurriedly and with little chewing; gulp. To desert or withdraw support from (a political party). Archaic To shoot or discharge (a missile, such as an arrow). To or suddenly. To break away from an affiliation, as from a political party.

The definition of a bolt is a flash of lightening. A bolt of lightening is a flash of light in the sky right before the sound of thunder. A bolt is defined as a bar or rod used for locking or joining two things together. Bolt lug lock up inside the extension is not as firm or true as many might think and this can be demonstrated in at least three ways. AR-15 Bolt Carrier Tilt Anyone that bets against Bolt at a major championship isn't smart, the Jamaica-born Canadian told Reuters. bolt noun [ C ] (LOCK) › a small metal bar that slides across a door or window to lock it: I fastened the door with a bolt . › A bolt is also a part of a gun that pushes the cartridge (= container filled with explosive powder) into position to be fired.

‘There was the sound of a bolt sliding out, and she opened the door.’ ‘Their front door was fitted with a Yale lock, two bolt s and a security chain.’ ‘She was dozing off to sleep when the bolts in the door were drawn back.’ 1.1 A long pin with a head that screws into a nut, used to fasten things together. a bolt that has an attachment that expands as the bolt is driven into a surface kingbolt , kingpin , swivel pin bolt that provides a steering joint in a motor vehicle Definition of nuts and bolts. 1 : the working parts or elements. 2 : the practical workings of a machine or enterprise as opposed to theoretical considerations or speculative possibilities. —.