Multimedia is a system of relaying information or entertainment that includes many different forms of communication. You might use multimedia to give a presentation at school.
Multimedia might include video, audio clips, and still photographs, for example. A newspaper's online presence could use multimedia as well, combining graphics, sound, and animation. The word itself, sometimes spelled with a hyphen as multi-media, has been used since 1962, from multi-, or "many," rooted in the Latin multus, "many or much;" and media, the plural form of medium, or "system of communication."