* Communicate: To share information or ideas with others.
* Community: A group of people living in the same place or sharing the same interests.
* Communism: A political and economic system where the means of production are owned by the community as a whole.
* Communal: Relating to or shared by a group or community.
* Communicate: To share information or ideas with others.
* Commemorate: To honor the memory of someone or something.
* Commune: A group of people living together and sharing property and responsibilities.
* Common: Belonging to or shared by all members of a group.
These are just a few examples, and there are many more words that contain the root "commun-".