Astrological signs are used to divide the sky into 12 sections, each of which is associated with a particular sign. The four solutions provided are CUSP (4 letters), LEO (3 letters), ARIES (5 letters) and LIBRA (5 letters). CUSP is the term used to describe the transition between two astrological signs, while LEO, ARIES and LIBRA are all individual signs. LEO is a fire sign represented by the lion, ARIES is a fire sign represented by the ram, and LIBRA is an air sign represented by the scales.