Elastic potential energy is a type of potential energy that is stored in an object when it is stretched or compressed. This energy is released when the object returns to its original shape or position. There are several synonyms for elastic potential energy, including spring potential energy, stretch potential energy, and deformation energy. Spring potential energy refers to the energy stored in a spring when it is compressed or stretched. Stretch potential energy is the same concept applied to other elastic materials besides springs. Deformation energy refers to the potential energy stored in an object when it is deformed, regardless of whether it is elastic or not.