Simplify the following text for a Grade 8 native English-speaking person.
Original: As in British spelling , the ` u ' is retained in words such as honor and favor and the - ise ending is used in words such as organise and realize , although - ize may be tolerated , and occasionally appears in official contexts .
Simplified: In words like organise , realize , both - ise and - ize are accepted , as in British English , but , - ise is preferred .