Using these two abbreviations as if they are interchangeable is a common mistake. They have distinct meanings.   Definitions   Both come from Latin: e.g. is from exempli gratia , meaning ‘for example’; i.e. is from id est , meaning ‘that is’.   You use ‘e.g.’ to mean ‘for example’ or ‘such as’. If you start a list with ‘e.g.’, ‘including’ or ‘such as’, you are telling the reader that the list is not complete. For example:   Tech companies ( e.g. Amazon, Apple and Microsoft).

A lot of people in the UK, and indeed in other parts of the world, will tell you that ‘z’ spellings (usually verbs, e.g., realize, organize and summarize) are American English and examples of Americanisation (Americanization!). They maintain that ‘realise’, ‘organise’ and ‘summarise’ are the correct way to spell those verbs in British English. These days, ‘-ise’ spellings are more common in British English texts but you can actually use either ‘s’ or ‘z’ spellings, as long as