What is short term or long term visa?

A short-term visa is usually used for tourism or travels that are temporary in other countries, whereas a long-term visa is typically used for longer residency in these countries. However, the requirements for a short-term and long-term visa may vary by country. For example, a long-term visa is necessary for travelling to France if you plan on staying more than 3 months, but you can stay in the United Kingdom for up to 6 months before being required to obtain a long-term visa there.