visitor
/ˈvɪzɪtə(r)/noun
1- a person visiting a person or place, especially socially or as a tourist来访者; 参观者; 游客。
1.1
- （一般作visitors）a member of a sports team on tour or playing away from home来访运动队队员; 客队队员。
1.2
- Brit. a person with the right or duty of occasionally inspecting and reporting on a college or other academic institution〈英〉（大学或其他学术机构的）督察员, 督导。
1.3
- Ornithology a migratory bird present in a locality for only part of the year【鸟】暂栖候鸟。
词源
late Middle English: from Anglo-Norman French visitour, from Old French visiter （see VISIT）.