The term "special guest" refers to a person who has been invited to attend an event or gathering, often as someone of importance or significance. This could be due to their status, role, achievements, relationships with others attending, or any other reason that makes them stand out from the general crowd. The phrase can also imply that this individual is being honored in some way and has been given special treatment or recognition. In short, a "special guest" is someone who has been singled out for their unique qualities or contributions, and whose presence at an event adds to its importance or prestige.