"Visa-free" refers to the ability of travelers to enter a country without needing to obtain a visa in advance. This means that citizens of certain countries can visit another country for a specified period, usually for tourism or business, without the extra step of applying for a visa. The specific rules and duration of stay can vary depending on the agreements between countries. Many countries have established bilateral agreements that allow for visa-free travel. For example, citizens of the European Union can often travel freely within other EU member states. This arrangement simplifies international travel and encourages tourism and business exchanges.