VESTIBULE is validvalid

to refit an open-platform streetcar for enclosed operation [v VESTIBULED, VESTIBULES, VESTIBULING]

118,950 of 196,601 in NWL2023·also valid in CSW24

an entrance-hall [n -S] / to provide (a railway carriage) with vestibules; to link by means of vestibules [v VESTIBULED, VESTIBULING, VESTIBULES]