Chips!
Excellent thread! But, who could do without chips
(for those in the USA, they call them French Fries)
Once I ordered Chips in a USA restaurant, and they gave a bunch of what the English call crisps, and the Canadians
call the potatoe chips. But, I must admire our ancestors for
living without our USA - Canadian - English double speak.
i.e. lift vs elevator, escalator vs moving staircase.
For North American they would guess a moving staircase to be
something in a haunted house or a horror flick.
And we haven't even added in the folks from the Land Down Under, or the Scottish-Welsh-Irish lingo.
Then there is the letter Z - Zed in England & Zee in the USA.
Canadians call it Zed, but many blindly repeat the ZEE.
The only product with the ZEE label is a paper product
used in the washroom or is it bathroom or lavatory
or heads?

?