"Yellow French prune" is a particular variety of prunes that has a distinct yellowish hue when dried. As with any other words, there could be synonyms that could either mean the same or related to it. A few possible examples of synonyms for "yellow French prune" are: 1. Golden French prune - since the yellow color of the fruit can be associated with the word "golden". 2. Mirabelle prune - Mirabelle is a type of yellow plum that can also be dried and used as a prune. 3. D'Agen prune - this is another type of prune that is often associated with the French varieties and can come in a yellowish hue as well. 4. Sun-dried plum - this one is not exactly a synonym, but it can describe the process of drying the fruit under the sun, which could result in a yellowish color.