visitor

noun

• a person visiting someone or somewhere, especially socially or as a tourist:she’s a frequent visitor to London I’m expecting visitors later this evening
• (usually visitors) a member of a sports team on tour or playing away from home: the visitors came back into the game with two penalty goals
• British a person with the right or duty of occasionally inspecting and reporting on a college or other academic institution.
• Ornithology a migratory bird present in a locality for only part of the year: the red-necked grebe is a regular winter visitor