For example, they are used to distinguish freeware (software "gratis") from free software (software "libre"). It is free (gratis) software distributed under the open source GNU General Public License. Its name comes from the Latin word "Gratis", meaning free of charge. Satan-eDonkey-server software is also gratis. Lugdunum server software is gratis, but not open source. It is released under a proprietary software license, that allows using a single copy gratis. Later in the month it converted Microsoft Teams to gratis. On 6 September 2017, India has announced gratis (no cost) visa for citizens of Myanmar. American Airlines provided the Boeing 767 gratis. The site provides gratis open access to some publications. These fonts can be obtained "gratis" from GNU Savannah. He then gave it to the PLA gratis. The 'g' in this specific version stands for "gratis". Green OA is gratis for the author. In 2004, Casey Fenton founded CouchSurfing, in which accommodation is offered gratis.