visa

A visa is an official document or endorsement issued by a country's government that allows a foreign national to enter, stay, or leave that country for a specified period. It typically specifies the purpose of travel, such as tourism, work, or study, and includes details like duration of stay. Obtaining a visa often requires fulfilling certain requirements, such as submitting an application, providing documents, and sometimes attending an interview. It's important to have a valid visa before traveling, as it ensures compliance with the host country's immigration laws.