(slang) A cyclist who is concerned about the weight of his or her bicycle.

(boxing) a boxer weighing more than a lightweight boxer and less than a middleweight boxer; someone boxing in the welterweight class

Unremitting heavy weight that does not move. / (nautical) The largest weight of cargo a ship is able to carry; i.e, the weight of a ship when fully loaded minus its weight when empty.

(of a shot in snooker or other cue sports) With just enough weight for a ball to drop into a pocket, or come to rest in a precisely determined position.

(intransitive, weightlifting) To take part in weight training

(weightlifting) A form of physical exercise using weights to increase the strength and size of muscles by using exercises specific for each muscle group.

a system of units of weight/mass, mostly used for precious metals and gemstones, in which the pound contains 12 ounces which each contain 480 grains

(chemistry) The atomic weight of an element or radical divided by its valence; the molecular weight of a compound divided by its combining power in a specific reaction.

(chemistry) The sum of the atomic weights of every atom in a molecule.

(boxing) between lightweight and middleweight