The "AB Class" refers to a classification system used in various fields, including education and transportation. In education, it often denotes a grouping of students based on their academic performance or learning needs, allowing for tailored instruction. In transportation, it can refer to different categories of vehicles or services, such as bus or train classes, which indicate levels of comfort and amenities. In the context of railways, the AB Class may specify a type of train that offers specific features, such as seating arrangements and onboard services. This classification helps passengers choose the best option for their travel needs, ensuring a more organized and efficient experience.