noun /ˈvɪzɪtə/
a) Someone who visits someone else; someone staying as a guest.
Warwick observed, as they passed through the respectable quarter, that few people who met the girl greeted her, and that some others whom she passed at gates or doorways gave her no sign of recognition; from which he inferred that she was possibly a visitor in the town and not well acquainted.
b) Someone who pays a visit to a specific place or event; a sightseer or tourist.
Wikipedia foundation.