Super nova refers to the explosion of a massive star, which results in a bright and intense burst of light. However, there are several synonyms that can be used to describe this event, such as supernova remnant, stellar explosion, and hypernova. Supernova remnants are the remains of a supernova, which may include a pulsar or a neutron star. Stellar explosion is a broad term that includes a supernova, as well as other types of explosions such as novae and gamma-ray bursts. Hypernova is an extreme type of supernova that occurs in very massive stars and produces a more intense burst of radiation. All of these terms are used to describe the explosive end of a star's life.