Know the PS full form in chat , its meaning , and how to use it correctly in WhatsApp, SMS, and online messages. This domain name has expired. If you are the registered holder of this name and wish to renew it, please contact your registration service provider. Learn the meaning of " PS " in letters and emails and how to use it correctly. Explore the benefits of using " PS " in your correspondence. PS is an abbreviation for postscript, used to add extra information or thoughts after the main message in texting. Learn how to use PS effectively in different contexts, such as adding a reminder, sharing extra information, making a joke, or apologizing.