Since weightlifting is an international sport, the metric system is used. Weight is always measured in kilograms (1kg = 2.2046lbs) and measurements are done in millimeters or meters.

Bandages and wraps: bandages and wraps are allowed though strict limits are placed on width, 300mm (12in) at the knees and 100mm (4in) at the wrists.

Bar: The bar for men weighs 20 kg, is 2,200 mm long and is 28 mm in diameter. The bar for women weights 15 kg, is 2,010 mm long and is 25 mm in diameter. As a competition progresses, the weight on the bar increases by 2.5 kg except in record attempts.

Belt: A lifter may use a weightlifting belt, though it may not exceed 120mm (4.5in) in width.

Bomb: A lifter "bombs" when he/she fails to record a total. An athlete has three chances to make a successful lift in both the snatch and clean-and-jerk. If he/she fails to make a valid lift in either of the two lifts, there will not be a total and has therefore bombed.

Chalk: Chalk may be applied to hands and on the thighs if desired in an unlimited quantity.

Collars: These secure the weights on the bar. Each collar weights 2.5 kg. The bar must be loaded with the largest discs toward the middle of the bar and the smaller ones in descending order toward the outside.

Hooking: Hooking is a technique used to hold the bar. A hook grip is when thumbs are placed around the bar and underneath the index and second fingers.

Plates: The discs or bumper plates are covered with rubber or plastic and placed on the bar with collars which secure the plates to the bar.

Platform: A competition platform measurers 4 meters by 4 meters (13ft by 13ft). It is made out of wood, plastic or any other material, and may be covered with a non-slippery material.

Shoes: Low or high topped shoes are used. The mid-soles are made out of wood or rubber, and the uppers out of leather or suede.

Singlet: A one piece lifting suit worn by all the lifters at events. It cannot cover the elbows or knees, and it is usually made out of lycra material.

Six-for-six: This refers to a lifter making six valid lifts in six attempts--three successful snatches and three successful clean-and-jerks.

Press Out: This happens when an athlete bends his arms while holding the bar overhead and then presses out to make them straight.

Touching the Platform: A lifter may touch the ground with his feet, but no other part of the body is allowed to touch the platform.

Failure to Control the Bar: A lifter must have the bar under complete control prior to the down signal.

In the Clean, touching the arm or elbow to the knee or leg is not allowed.