[ˈtɒnəʊ], (Noun)

Definitions:
- the part of a car, typically an open car, occupied by the back seats
(e.g: I sat rigidly in the tonneau of an asthmatic 1956 Chevrolet)

- a unit of capacity for French wine, especially Bordeaux, usually equal to 900 litres or 198 gallons


Phrases:

Origin:
late 18th century (in tonneau): French, literally ‘cask, tun’