* "The ancient tribe lived under a matriarchy, where women held the most power and authority." (This highlights the societal structure.)
* "Some anthropologists believe that early human societies were matriarchal, with women playing a central role in decision-making." (This presents a theory about the past.)
* "The film explores the concept of matriarchy in a futuristic society where women have overthrown the patriarchal system." (This describes a fictional example.)
* "While the term 'matriarchy' is often used in a theoretical context, it's important to note that true matriarchal societies are rare in history." (This provides a nuanced understanding of the term.)
The specific context will determine the best way to use "matriarchy" in a sentence.