noun Someone who visits someone else; someone staying as a guest.
noun Someone who pays a visit to a specific place or event; a sightseer or tourist.
noun Someone, or a team, that is playing away from home.
noun A person authorized to visit an institution to see that it is being managed properly.
noun An extraterrestrial being on Earth.
noun An object which lands or passes by Earth or its orbit.
noun A head or overseer of an institution such as a college (in which case, equivalent to the university's chancellor) or cathedral or hospital, who resolves disputes, gives ceremonial speeches, etc.
noun The object in the visitor pattern that performs an operation on the elements of a structure one by one.