For a medical stroke:
* Un accident vasculaire cérébral (AVC): This is the most common and accurate term for a stroke in medical contexts.
* Une attaque cérébrale: This is a less formal but still widely understood term.
For a stroke of luck or a stroke of genius:
* Un coup de chance: This refers to a lucky break.
* Un coup de génie: This refers to a brilliant idea.
* Un coup de maître: This refers to a masterful stroke or achievement.
For a physical stroke (like in painting):
* Un coup de pinceau: This refers to a brushstroke.
* Une touche: This can also refer to a brushstroke or a touch of something, like color.
For a stroke of the pen:
* Un trait de plume: This refers to a stroke of the pen, often used for writing or drawing.
The specific translation of "stroke" will depend on the context of your sentence.