ODBC
Short for Open DataBase Connectivity. ODBC is a common framework for accessing and altering the contents of databases.
Open source
refers to a program in which the source code is available to the general public for use and/or modification from its original design free of charge.
OpenPGP Keys
OpenPGP is a tool for secure online communication. It’s a non-proprietary protocol used to encrypt email using public key cryptography. OpenPGP is based on PGP. cPanel utilizes GnuPG (Gnu Privacy Guard) for its public-key cryptography.
Opera
Another popular web browser. http://www.opera.com/
Ownership
The state of being an owner. In web-hosting terms, this usually refers to the permissions set for directories and files for your website.