For all practical purposes on Wikipedia, the public domain comprises copyright-free works: anyone can use them in any way and for any purpose. Proper attribution to the author or ...

The public domain is a range of abstract materials ? commonly referred to as intellectual property ? which are not owned or controlled by anyone.

From the Simple English Wikipedia, the free encyclopedia that anyone can change

There are many resources available on the net that are in the public domain, and therefore freely usable without restrictions for Wikipedia content.

Absence of legal protection. Creative works are in the public domain wherever no law exists to establish proprietary rights, or where the subject matter is specifically excluded ...