The word "dumb-bell" is often used to describe a weight-training device that consists of two heavy weights attached to a handle or bar. However, there are many synonyms for "dumb-bell" that can help you in your weightlifting pursuits. Some common synonyms for this word include "barbell", "weight", "kettlebell", and "free weight". Barbell is a type of weight that consists of a long, straight bar with interchangeable weights on either end. Weight can refer to any type of heavy object that is used for strength training. Kettlebell is a type of Russian weight training tool that is shaped like a cannonball with a handle. Lastly, free weight refers to any type of weight that is not attached to a machine or pulley system.