Definition of post scriptum; P.S.
- text added after the end of a letter or message
Usage examples of post scriptum; P.S.
At the end of the letter, she added “P.S. I left the keys under the test-mat.”
A post scriptum is added after the main message, often because the writer remembered one more thing.
His email ended with a P.S. reminding everyone that the deadline had moved to Friday.