1) Bodybuilders lift them 2) Burdens 3) Ounce and gram 4) Stone and carat 1) Carats 2) Hefts 3) Iron 
Many lighter skydivers wear a weight vest to allow them to maintain a fast fall rate
The yoga of weights is a formulation by Alexander Grothendieck of analogies between Hodge theory and l-adic cohomology.[1]
Lead strips placed in a weight cloth to bring the jockey and tack up to the handicap weight.
The various barbells, benches, machines used by swimmers during their dry land programme. Training sessions in the 'Weights Room' (aka weights)