A "sun sign" refers to the zodiac sign that corresponds to the position of the sun at the time of a person's birth. In astrology, there are twelve sun signs, each associated with specific personality traits and characteristics. These signs are part of the broader zodiac, which is a circle of twelve divisions that represent different astrological influences. People often identify with their sun sign, as it is the most commonly referenced aspect of their astrological profile. For example, someone born between March 21 and April 19 would be an Aries, known for being energetic and assertive. Sun signs are frequently used in horoscopes to provide insights into daily life and personal relationships.