Is the use of ‘ize’ ever standard for any word over the use of ‘ise’ in UK English? [duplicate]

Is there any occasion upon which in British English, the ‘z’ is normally used and the ending ‘ise’ would be incorrect?


Solution 1:

Is there any occasion upon which in British English, the ‘z’ is normally used and the ending ‘ise’ would be incorrect?

The OED uses the -ize form as the primary word in its relevant entries. Although not "official" the OED is recognized/recognised as a dictionary "of record" - with that authority -ise and -ize are correct.