The Webmaster's Lexicon: G

GET	An HTTP request method. Information from a form using the GET method is appended onto the of the action URI being requested. Your CGI program will receive the encoded form input in the environment variable QUERY_STRING. The GET method is used to ask for a specific document - when you click on a hyperlink, GET is being used. GET should probably be used when a URL access will not change the state of a database (by, for example, adding or deleting information) and POST should be used when an access will cause a change. Many database searches have no visible side-effects and make ideal applications of query form using GET.
GIF	Graphics Interchange Format, a common standard for images on the web.
GIF Animation	A simple and cheap way to create "instant animation". It will allow a limited form of sprite-based animation. You can add a smaller image to a larger one and change its co-ordinates in following images.
Gmtime	A Perl function that converts UNIX time into a record or string using Greenwich time.
Graphic	Pictures or images, either scanned for online use or created with graphics software. Graphic file formats include GIF, JPEG, BMP, PCX, and TIFF.