Sexual desire is a powerful emotion that can be expressed in many different ways. Erotism, with seven letters, is the appreciation of beauty and sensuality, often expressed through art or literature. LUST, with four letters, is an intense longing or craving for something, usually sexual in nature. LIBIDO, with six letters, is the instinctive sexual drive or energy. Lastly, EROS, with four letters, is the Greek god of love and sexual desire. All of these terms are related to the concept of sexual desire.