However, we can infer that she was likely fluent in English and French.
Here's why:
* English was her native language, and she wrote extensively in English.
* French was a widely spoken language in Europe during her lifetime. Wollstonecraft spent time in France and even wrote a book about the French Revolution, "A Vindication of the Rights of Men."
It is possible she had some knowledge of other languages, such as Latin or Italian, as these were common subjects of study during her time, but we don't have specific proof.