Meaning

• The rigging of a sailing ship or other such craft.

• Special equipment or gear used for a particular purpose.

  "The climbers each had a different rig for climbing that particular rockface."

• A large truck such as a semi-tractor.

  "Every rig at the truckstop had custom-made mud-flaps."

• The special apparatus used for drilling wells.

• A costume or an outfit.

  "My sister and I always made our own rigs for Halloween."

• A computer case, often modified for looks.

• An imperfectly castrated horse, sheep etc.

• Radio equipment, especially a citizen's band transceiver.

• A model outfitted with parameterized controls for animation.

Meaning

• To fit out with a harness or other equipment.

• To equip and fit (a ship) with sails, shrouds, and yards.

• To dress or clothe in some costume.

• To make or construct something in haste or in a makeshift manner.

  "rig up a makeshift shelter"

• To manipulate something dishonestly for personal gain or discriminatory purposes.

  "to rig an election"

• To make free with; hence, to steal; to pilfer.

• To outfit a model with controls for animation.