WORLD' (4 letters) The term WWW WORD is composed of two words: WEB and WORLD. WEB is a 3-letter acronym for World Wide WEB, which is an information system that allows users to access documents and other resources on the Internet. WORLD is a 4-letter word that refers to the planet Earth and all its inhabitants. Together, the two words form the phrase 'World Wide WEB Word, ' which is used to describe the global network of websites and other online resources.