Copyright and the law

Investigate these terms

1. Copyright: A right that given to a creator in order to protect his/her original work for a limited of time. (Copyrighted = Reliable)
2. Copy Free: Identify the freedom of copy/use without commercial/charge.
3. Trade Mark ( ™ ): A brand name that includes any word, name, symbol, device, or any combination.
4. Creative commons: A non-profit organization in order to expand the range of creative works legally. Collect copy free works and give to everybody.
5. Royalty free: The right to use copyrighted materials for free. (Music)
6. GNU Licensed: Free software license.
7. Public Domain: Available of belonging to the public
8.   

Copyrighted = Reliable
Copy Free = ?