from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The rear seating compartment of an early type of automobile.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The rear body or compartment of some types of motor vehicle, especially one containing seats for passengers.
- n. An old-style open passenger vehicle with a tonneau (rear compartment with seats).
- n. Short for tonneau cover.
from the GNU version of the Collaborative International Dictionary of English
- n. In France, a light-wheeled vehicle with square or rounded body and rear entrance.
- 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.
- n. same as Tonne.
from The Century Dictionary and Cyclopedia
- n. A tub.
- n. A name given by French builders of motorcars to the rounded or cask-like rear body of the vehicle.
- n. See êtonne.
French, from Old French tonnel, cask; see tunnel.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French tonneau. (Wiktionary)