There is different terminology in the US and the UK. Now I will probably confuse myself trying to explain: Crisps = UK word for potato snacks that come in a bag Chips = US word for similar snacks in a bag, these can be potato chips, or corn chips. I don't know how you express these in Spanish, it seems there is a lot of regional variation between different Spanish speaking countries having looked online (maybe 'patatas de bolsa'?, that's a guess by the way) Chips (UK) = patatas fritas French fries (US) = patatas fritas But to complicate things further, we have French fries in the UK too, they're longer and thinner and the kind you get in fast food restaurants like McDonalds. Normal 'chips' are wider and shorter. If you look for images it will probably enable you to see the differences more easily than any words will.

Yes, you are correct. Por cierto, decimos patatas en Latinoamérica, y suelen decir papas en España.

yes and to add to what paul said in the US we also have potato wedges that are like super thick french fries with the potato skin still on them and in the U.S. people always use ketchup on their french fries, in other places people use mayo and different dips