Personalization vs. Personalisation: Decoding the Atlantic Spelling Divide

If you have ever stared at a blinking cursor wondering whether to type a z or an s, you are not alone. The debate between personalization and personalisation is one of the most common friction points between American and British English.

Despite the single-letter difference, both words share the exact same definition, pronunciation, and grammatical function: they refer to the act of designing, tailoring, or modifying something to suit an individual user or customer.