Gammas are a group of radioactive particles, but there are synonyms that are often used to describe them in different contexts. Radiations, rays, and emissions are all words that can be used interchangeably with gammas. These synonyms are commonly used when referring to the harmful effects of radiation exposure or the use of nuclear energy. In physics, gamma rays refer to electromagnetic radiation of the highest energy. In astronomy, gamma-ray bursts are short bursts of gamma rays that occur in space. While these synonyms all refer to the same phenomenon, they offer different perspectives and applications of the concept of gamma.