Capsicum Annuum Longum, commonly known as Cayenne pepper or chili pepper, is a spicy fruit used in various cuisines for adding flavor and heat to dishes. There are various synonyms for the word Cayenne pepper, including bird's eye chili, Thai chili, African pepper, and red pepper flakes. These synonyms highlight the wide use of Capsicum Annuum Longum in various parts of the world. The bird's eye chili is commonly used in Asian cuisine, while the African pepper is a popular spice in West African dishes. The Thai chili is a staple in Thai cuisine, and red pepper flakes are used in Italian and other European cuisines. Overall, these synonyms emphasize the versatile nature of this spicy fruit in international cooking.