a form of government whose head of state is not a monarch
In 509 BCE, leading Romans overthrew the kind and formed a republic. A republic is a government in which citizens have the right to vote and elect officials.
a lay judge or civil authority who administers the law
Power was also divided among the three branches of government. They were the assemblies, the senate, and the magistrates, or elected officials who enforce the law.
a plan of action adopted by an individual or social group
The senate advised the assemblies and magistrates. Its advice was almost always followed. It also ran foreign policy and decided how to spend the state's money.