Greek citron is a rare fruit with a distinct flavor and aroma. It is commonly used in Mediterranean cuisine and is known for its sour and tangy taste. Some synonyms for Greek citron are etrog, Cedro, Buddha's hand, and Yemenite citron. These fruits are similar in appearance and taste but differ in size and texture. Etrog is commonly used in Jewish tradition during the Sukkot festival, where it is placed with other plant species to symbolize the harvest. Cedro is a larger fruit, with a thick rind that is candied and used in sweets and desserts. Buddha's hand is a finger-like citrus fruit that is often used in perfumes, while Yemenite citron is a rare variety grown in Yemen.