1Used to introduce an additional remark at the end of a letter, after the signature.
- ‘PS: please remember to come with your ID card’
- 1.1An additional remark at the end of a letter, following the signature and introduced by ‘PS’; a postscript.
afterthought, PS, additional remark
- ‘in the PS, she adds that she is sending a couple of drawings’
Early 17th century from the initial letters of Latin post scriptum.
3(in the theatre) prompt side.
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