a shaft or missile intended to be shot from a crossbow or catapult, esp. a short, stout, blunt-headed arrow; a quarrel; an arrow, or that which resembles an arrow; a dart.-lightning; a thunderbolt.-a strong pin, of iron or other material, used to fasten or hold something in place, often having a head at one end and screw thread cut upon the other end.-a sliding catch, or fastening, as for a door or gate; the portion of a lock which is shot or withdrawn by the action of the key.-an iron to fasten the legs of a prisoner; a shackle; a fetter.-a compact package or roll of cloth, as of canvas or silk, often containing about forty yards.-a bundle, as of oziers.-to shoot; to discharge or drive forth.-to utter precipitately; to blurt or throw out.-to swallow without chewing; as, to bolt food.-to refuse to support, as a nomination made by a party to which one has belonged or by a caucus in which one has taken part.-to cause to start or spring forth; to dislodge, as conies, rabbits, etc.-to fasten or secure with, or as with, a bolt or bolts, as a door, a timber, fetters; to shackle; to restrain.-to start forth like a bolt or arrow; to spring abruptly; to come or go suddenly; to dart; as, to bolt out of the room.-to strike or fall suddenly like a bolt.-to spring suddenly aside, or out of the regular path; as, the horse bolted.-to refuse to support a nomination made by a party or a caucus with which one has been connected; to break away from a party.-in the manner of a bolt; suddenly; straight; unbendingly.-a sudden spring or start; a sudden spring aside; as, the horse made a bolt.-a sudden flight, as to escape creditors.-a refusal to support a nomination made by the party with which one has been connected; a breaking away from one's party.-to sift or separate the coarser from the finer particles of, as bran from flour, by means of a bolter; to separate, assort, refine, or purify by other means.-to separate, as if by sifting or bolting; -- with out.-to discuss or argue privately, and for practice, as cases at law.-a sieve, esp. a long fine sieve used in milling for bolting flour and meal; a bolter.