BC, AD, CE, and BCE: Meanings and Differences Explained BC means Before Christ and AD stands for Anno Domini, a Latin term which means Year of Our Lord, in English BCE and CE mean Before Common Era and Common Era and are alternatives to BC and AD respectively
What does AD mean? - Abbreviation Finder In summary, AD is an abbreviation that can stand for various terms depending on the context, and its interpretation can vary across different fields such as technology, business, education, geography, government, law and other specialized areas