A school bus is a special bus which takes children to and from school.
school bus in British English
(skuːl bʌs)
noun
a bus that takes children to and from school
school bus in American English
US
a vehicle, owned and operated publicly or privately, used for transporting students to or from a school or on school-related trips
Examples of 'school bus' in a sentence
school bus
Federal law prohibits dealers from selling or leasing a new "school bus" to any school or charity unless the bus conforms to stringent federal safety requirements.