USA/Australian dictionary

Cell = Mobile phone
Diaper = Nappy
Nappy = possibly small cloth to wipe up sick
Condominium (condo) = Apartment (although sometimes apartment = apartment)
Garden condo = ground level apartment. Not always with a private garden. Usually just some bushes nearby.
Flat = nothing. don't use this word, especially in relation to real estate
Mini-van = People Mover (owning these cars is not solely limited to large christian families) Not to be mistaken with the 12 seater vehicles in Australia. Sometimes the mini-vans are the smallest cars in the carpark...
Truck = extremely large ute, often with four doors plus a tray (owning these cars is not limited to singles and workmen) Very very cool.
Protein Bar = Museli bar, I think
Cookie = Biscuit
Sweater  = Jumper (apparently worn with or without things under it)
Cheque book = cheque book (given out by most banks when you get a bank account. ownership not limited to the older generation. Not sure if we'll use ours or save it for Australian play paper!)