your sun sign is your main sign. when people ask what your sign is, this is what they’re saying. sun signs change about the 19th-22nd of each month, and this is called the cusp. essentially your sun sign is the strongest and has the most influence on you. you can check out the cake analogy for a way to understand how all the signs play out. tbh there is no /one/ answer for astrology, since its not set in stone or anything and is all open to interpretation. i wouldnt really say any sign “dominates” but some have more power or influence your choices or personality more than others. for example, if you are a virgo with moon in cancer, since cancer is ruled by the moon, this may cause you to show more cancer traits. also (in my opinion) a person who is born at the end of the month, but not on the cusp, is more effected by their sun sign than the other signs. for example, if you’re a pisces born in march with aries moon, you probably identify more with water sign traits than fire sign traits. but if you’re a pisces born in april, you may identify more with fire sign traits. i think this could be because of the different deacons in each sign, but i havent really read into deacons and how they effect your sign or the differences per sign. i hope that helped, if i didn’t i can just do your chart for you and try to tell you about it.