How do you spell Apologise?
Correct spelling
apologise
US: apologize (Z). UK/AU/NZ: apologise (S).
Why is apologise spelled this way?
Like realise and organise, apologise uses S where American English uses Z. The Greek root apologizesthai actually contains a Z-equivalent, so the American form is arguably more etymologically faithful.
Common misspellings of apologise
apoligiseappologiseapoligizeappologize
Example
I must apologise for the delay.