Cinnamon basil, scientifically known as Ocimum basilicum 'Cinnamon', is a flavorful herb that adds a sweet, warm aroma to any dish. However, the herb goes by several names such as Mexican spice basil, cinnamon-flavored basil, and Thai basil. Mexican spice basil is a unique synonym, implying that the herb has a spicy kick to it. Cinnamon-flavored basil is another well-known synonym that highlights the sweet, cinnamon flavor profile that sets it apart from other types of basil. The name Thai basil is also used since the herb is commonly used in Thai cuisine, where it's known as horapha. Regardless of what you call it, cinnamon basil is a great way to add a unique and delicious flavor to your meals.