What is a travel visa?

A travel visa is a crucial document that allows a traveler to enter, stay in, and exit a foreign country. It is generally issued by the government of the destination country and serves as permission for non-citizens to travel there for various purposes, such as tourism, business, study, or immigration. The visa usually includes important details such as the duration of stay allowed, the purpose of the visit, and any specific conditions that must be adhered to while in the country. This authorization is essential for maintaining border control and ensuring that visitors comply with the laws and regulations of the host country.

In contrast, while discount travel fares, permits for domestic travel, or identification for domestic flights are important aspects of travel, they do not pertain to the legal entry or requirements for staying in a foreign country. Thus, the defining role of a visa as an authorization for entry into another nation makes this option the accurate choice.