Medical:
* Accident vasculaire cérébral (AVC): This is the most common translation for a stroke, literally meaning "cerebral vascular accident".
* Ictus: This is a more formal medical term for stroke.
Other contexts:
* Coup: This translates to "stroke" as in "stroke of luck", "stroke of genius", etc.
* Trait: This translates to "stroke" as in a single line drawn with a pen or brush.
* Coup de rame: This translates to "stroke" as in rowing.
It's important to provide context when asking for a translation, as the meaning of "stroke" can vary greatly.