I’m from UK and when I type in bonnet it’s still a hat.
There are lots of the same words for different meanings. Like bonnet which can also be car bonnet.
Your chips are our crisps and your fries are our chips, unless we’re talking in restaurants. Where we say fries.
Boot means shoes and can mean car boot.
We say arse but most will understand ass.
Also Southern English is different to northern English in England as well so it’s not just American English which is different. Like an alleyway is a ginnel up north, dinner is tea, cup of tea is a brew, mum is mam but some pronounce mom as like in America but it’s spelt mum.
@Gingerbreadspice Early cars in North America had a box like trunk strapped on to the back of the car. It was eventually replaced with a closed compartment but the name stayed the same. I have no idea how the Brits came up with the name boot. It's not even on the bottom of the car.
@hippyjoe1955 umm I got a little light bulb going off in my head here. It is the ass of the car. Boot. Ass. Perhaps? It makes more sense than fanny defined.
@Gingerbreadspice I’m from the north and never in my life have I heard of a “ginnel” and I think we’d ruin our friends if we heard “mam” I think that’s Irish. But our slang does differ considerably. Maybe the reason I haven’t heard those words is possibly an age barrier thing
@BabyDolls Yes it’s the age barrier. My brother married a Mancunian and I don’t think she uses mam or ginnel but her 70 year old mum does. They all live here in Suffolk for so long that my sister in law grew up here and so she’s rather southern but has a slight Salford accent but without the northern slang.