(1):
(n.) Orig., the after part of the body with entrance at the rear (as in vehicle in def. 1); now, one with sides closing in the seat or seats and entered by a door usually at the side, also, the entire body of an automobile having such an after part.
(2):
(n.) = Tonne.
(3):
(n.) In France, a light-wheeled vehicle with square or rounded body and rear entrance.