OrganiSation or OrganiZation? The great spelling debate What is the correct spelling?  OrganiSation or OrganiZation - the great Atlantic debate There is a belief that it is spelt with an 's' in the UK and in the US with a 'z'.In fact, while the US spelling is with a 'z' the UK preferred spelling is also with a 'z' and as an alternative with an 's' if you follow the guidance from leading authoritative dictionaries.This is true even in my 1972 Concise Oxford … [Read more...] about OrganiSation or OrganiZation – which spelling is correct?