* Politics: The activities associated with governing a country or state.
* City: A large urban area with a high population density.
* Citizen: A person who lives in a particular city or state.
Examples:
* Politics: political party, political science, political ideology
* City: metropolis, megalopolis, cosmopolitan
* Citizen: police, policy, politician
Note: "Poli-" can also appear in words with other meanings, often related to the concept of many or multiple, such as:
* Polyglot: Someone who speaks multiple languages.
* Polytheism: The belief in multiple gods.
* Polymer: A large molecule made up of repeating units.