Question

what is different between organisation and organization ​

Answer 1

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Organization and organisation both are same the only difference being organization is written in American english, while organisation is used in British english. Same word. In America English, it is spelled Organization and in British English it is spelled Organisation.

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Answer 2

Answer:

Organisation is an alternative spelling of the same word. It means the same thing and can be used in all the same contexts.

The only difference is that organization is the sole spelling used in American English, while both terms are common in British English.