IPA: /tɒˈnəʊ/
KK: /tɑːˈnoʊ/
A part of a vehicle, usually at the back, where passengers sit or where items can be stored.
The family packed their bags into the tonneau of the car before heading out on their road trip.
Tonneau → The word originates from Old French *tonneau*, meaning a cask or barrel. It refers specifically to a large container used for storing liquids, particularly wine.
Imagine a large barrel used for storing wine — that's what a tonneau is, as it comes from the Old French word for cask.
No commonly confused words.