“Bona fide” is a Latin phrase that means “in good faith” or “genuine”. It is commonly used in English to describe something that is real, sincere, or legitimate. For instance, if someone is a “bona fide expert” in a particular field, it means that they are a genuine and recognized authority in that area. In legal contexts, “bona fide” can refer to actions or transactions conducted honestly and without fraudulent intent. It is often used to emphasize the authenticity or sincerity of something.