COMSAT, which stands for Communications Satellite, is a term used to describe a satellite used for communication purposes. There are a few synonyms that can be used to refer to this type of satellite. For instance, a "communications satellite" is a commonly used synonym for a COMSAT. Another synonym is a "telecommunications satellite". This term can also be used to refer to satellites that are used to provide phone or internet service to remote areas. Finally, the term "satcom" is a shortened version of "satellite communication" and can be used to refer to a COMSAT. Regardless of the term used, all of these synonyms relate to the use of satellites for communication purposes.