commons

noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about commons at Wordnik → Where our words come from →

A public area, especially a dining hall, at a college or university; a similar shared space elsewhere.
A common (common land); especially, a central section of (usually an older) town, designated as a shared area.
The Renaissance festival started with the "peasants" meeting in the commons.
The mutual good of all; the abstract concept of resources shared by more than one, for example air, water, information.
"The tragedy of the commons" is that none wish to make sacrifices of their or their family's interests for the common good.