Someone who visits someone else; someone staying as a guest.
"When my friend arrived at my apartment for dinner, she immediately put her bags down and settled in like a comfortable visitor."
In plain English: A visitor is someone who comes to see you or go somewhere for a short time before leaving.
"The visitor spent an hour looking at the museum's new exhibits."
Usage: A visitor refers to anyone who comes to see another person or place, often implying a temporary stay rather than permanent residence. Use this term when distinguishing between an occasional guest and the host of that gathering.
The word "visitor" comes from the Middle English visit combined with the suffix -er, as well as a separate form borrowed from the Old French visetëor. It originally referred to someone who went on an official inspection or inquiry before evolving into its modern sense of anyone who visits.