Vehicle type
(Other definitions for bus that I've seen before include "eg Double-decker" , "Something caught" , "Means of public transport" , "Road vehicle able to carry many passengers" , "Public transport vehicle" .)
(Other definitions for car that I've seen before include "Conveyance" , "Four-wheeled vehicle" , "One for the road?" , "Auto" , "Vehicle carrying vehicles" .)
(Other definitions for van that I've seen before include ". . . Morrisson (singer)" , "camper?" , "Light lorry" , "Forefront as of an army" , "... Morrison (singer)" .)
(Other definitions for minibus that I've seen before include "transport for children?" , "Vehicle for up to, say, 15 passengers" , "Small coach" , "Small multi-seater vehicle" , "form of transport" .)