Visa
 

Um, what is a visa? I have seen it around here many times but im a little confused on what it is

A visa (short for the Latin carta visa, lit. "a document that has been seen"[citation needed]) is a document issued by a country giving an individual permission to formally request entrance to the country during a given period of time and for certain purposes (see below for caveats and exceptions) and usually stamped or glued inside of a passport, or sometimes issued as separate pieces of paper.

Thank you! : )