Tim,
Here is the Aussie version of some of your definitions:

(car) horn = horn
sidewalk = footpath
mantlepiece = mantlepiece
raincoat = what's a raincoat? what's rain?
gumrubbers = gumboots
Scotch (the people) = Scots
chips = chips
fries = chips
sneaker = jogger
curb = curb
living room = lounge room, living room
sedan = sedan

I think there are a number of words like embed/imbed, entwine/intwine which use a leading e or i depending where you are.

Cheers,
Alan