postscript
US /ˈpoʊst.skrɪpt/
UK /ˈpoʊst.skrɪpt/

1.
post-scriptum, PS
an additional remark at the end of a letter, after the signature and introduced by 'PS.'
:
•
She added a humorous postscript to her letter.
Elle a ajouté un post-scriptum humoristique à sa lettre.
•
Don't forget to read the postscript; it contains important information.
N’oubliez pas de lire le post-scriptum ; il contient des informations importantes.
2.
post-scriptum, épilogue, suite
an additional statement or event that provides further information or a conclusion to something that has already happened
:
•
The final chapter served as a fitting postscript to the entire series.
Le dernier chapitre a servi de post-scriptum approprié à toute la série.
•
His unexpected resignation was a dramatic postscript to a long career.
Sa démission inattendue fut un post-scriptum dramatique à une longue carrière.