A block of PHP code that has a name and it has a property that it is reusable it can be executed from as many different points in a PHP Program as required. Also known as a method (if it is inside a class). Most Joomla code is inside functions/methods.
Front-end
The Joomla site that is accessed by visitors without user privileges. Front page refers to the public home page of your Joomla site.
FOSS
Acronym for Free or open-source software. Software, like Joomla, that is available to use, copy, study, and change in any way without charge. FOSS software typically uses a special software license, such as GPL, that requires any derivative works to also be free.
Gestique ...seeing and feeling the connection between human beings .. !
Jan Koolen