The phrase "is power of" refers to the capability or potential to influence or control a person or situation. Some synonyms for this phrase are "holds sway over," "exerts control," and "commands authority." Other related terms include "dominance," "ascendancy," and "hegemony." These words all convey the idea of having a powerful presence or a position of influence over others. They can be utilized in a variety of contexts, such as describing a political leader who holds power over a country or a company that has dominant market share in a particular industry. Ultimately, the ability to wield power can have both positive and negative impacts, depending on the intentions and actions of those who hold it.