What is the other word used for “copyright” with opensource?

Most large, open source software uses the General Public License (GPL).

The GPL, the Gnu Public License.

Well, the common term used for the opposite of “copyright” is “copyleft”, meaning you don’t claim any copyright over the content.
One of the most common types of open source licenses is the GPL (GNU (GNU’s Not Unix) General Public License).

There’s also one called the MIT license: http://www.opensource.org/licenses/mit-license.php
For other types see http://www.opensource.org/licenses

That’s what I was thinking But I’m not sure so a lot of help I am huh sorry