I've had a few weird exchanges with my wife, although we both are native french speakers.
Turns out the word we use in Switzerland for prune (the fruit) is only used for the dried version of the same fruit in France. Perfect set up for a strange conversation about baking until we found out.
Ah! You know what? I looked for a translation of the damned word... without trying to translate the word for plum, as it is obviously the same word in my head 😅