Bilimbi is a tropical fruit commonly used in cooking and medicine. It is also known as "cucumber tree" due to its shape and size. However, there are several other synonyms for this fruit, such as "tree sorrel," "kamias," "pickle fruit," and "belimbing." The name "belimbing" is most commonly used in Southeast Asian countries like Malaysia, Indonesia, and the Philippines. The fruit has a sour taste and is often used as a substitute for vinegar in cooking. It is also rich in antioxidants and has several health benefits like improving digestion, reducing inflammation, and lowering cholesterol levels. Overall, bilimbi is a unique and versatile fruit with various synonyms and uses.