A pasaport is an official document issued by a government that certifies a person's identity and nationality. It allows individuals to travel internationally and serves as proof of citizenship. Typically, a pasaport contains personal information such as the holder's name, date of birth, and photograph. When traveling abroad, a pasaport is often required for entry into other countries. It may also be used for identification purposes in various situations, such as when opening a bank account or applying for a visa. Each country has its own rules regarding pasaport validity and renewal.