Synonyms for the acronym ISS, which stands for International Space Station, may include terms like space laboratory, orbiting laboratory, or Earth-orbiting research facility. Other synonyms can be found by breaking down the acronym and using alternative words for each letter. For example, I could refer to the ISS as the International Sky Station, or the International Satellite System. Alternatively, one could use more general terms like space station, space lab, or even simply the station. Whatever synonym is used, the ISS remains a marvel of modern technology and a symbol of international cooperation, serving as a hub for scientific research and exploration in space.