The term 'Horoscope Dozen' is a reference to the twelve ZODIAC signs, which make up the ZODIAC. The ZODIAC is an area of the sky that is divided into twelve sections, each associated with a particular sign of the ZODIAC. Each sign is associated with certain characteristics and traits, and astrologers use these signs to make predictions about people's lives. The Horoscope Dozen refers to the twelve ZODIAC signs, which are Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces.