A passport application is a formal request to obtain a passport, which is an official document that allows individuals to travel internationally. The application process typically requires personal information, such as name, date of birth, and address, along with identification documents like a birth certificate or driver's license. To apply, individuals usually need to fill out a specific form, provide a recent passport photo, and pay a processing fee. The application can often be submitted online or in person at designated locations, such as post offices or government offices, depending on the country’s regulations.