- 1 (especially in compounds) a large piece of equipment that is used for taking oil or gas from the ground or the bottom of the ocean an oil rig Her husband works on a rig in the Gulf of Mexico for weeks at a time.
- 2the way that the mast and sails on a boat, etc. are arranged
- 3 (informal) = tractor-trailer
- 4equipment that is used for a special purpose a CB radio rig