The term "ascendant" refers to the zodiac sign that was rising on the eastern horizon at the time of a person's birth. In astrology, it is considered a significant factor in shaping an individual's personality and outward behavior. The ascendant influences how others perceive a person and can affect their approach to life. When someone is described as "dominant," it often means they exhibit strong leadership qualities and assertiveness. In the context of astrology, a dominant ascendant may suggest that the individual is confident and takes charge in social situations. This can lead to a commanding presence that draws attention and respect from others.