Water lemon is a common name for a type of citrus fruit known for its sour taste and high water content. Some synonyms for this fruit include lime, citron, and sour orange. Lime is often used in cooking and drinks, offering a tangy flavor that complements many dishes. Citron, on the other hand, has a sweeter taste than the water lemon, making it a popular choice for candying and preserving. Finally, sour orange is another citrus fruit with a similar sour taste to the water lemon and is commonly used in marmalades and sauces. While each of these fruits has its own distinct flavor profile, they all offer a similar citrusy tartness that can enhance many culinary recipes.