Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
Multi-word Results
bolt from the blue something that occurs without warning and with shocking abruptness.
bolt upright in a stiff, highly alert position.
expansion bolt a threaded metal rod or pin, usu. used in stone and concrete, that has an attachment that expands as it is screwed into a surface.
lag bolt see lag screw.