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.

To connect or assemble pieces using a bolt. / To secure a door by locking or barring it. / (intransitive) To flee, to depart, to accelerate suddenly.

To sift, especially through a cloth. / To sift the bran and germ from wheat flour. / To separate, assort, refine, or purify by other means.

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

Suddenly; straight; unbendingly.

present participle of bolt

An act of bolting or running away. / A sifting, as of flour or meal. / (law) A private arguing of cases for practice by students, as in the Inns of Court.

A surname transferred from the nickname.

simple past tense and past participle of bolt

A surname.