Question

What does "P.S." means and stands for in emails and letters?

Answer 1

P.S stands for post script.
P.S means a small short little ending for when a letter or email or message is done.
Ex: Lets all go shopping at the city mall. We'll have so much fun.
PS: Don't tell your little brother we are buying ice cream! :>)

Answer 2

it means post script. post means after thats why we use it after the message or letter for additonal information