The right pronunciation of “mayo” is a subject of a lot debate. Some folks insist that it must be pronounced “may-oh,” whereas others keep that “may-yo” is the one acceptable pronunciation. So, how do you say mayo? The reply, it seems, will not be as simple as you would possibly suppose.
The Oxford English Dictionary lists each “may-oh” and “may-yo” as acceptable pronunciations of the phrase. Nevertheless, the “may-oh” pronunciation is extra frequent in the USA, whereas the “may-yo” pronunciation is extra frequent in the UK. Finally, the pronunciation you select is a matter of non-public choice.