30 Linguistics, semiotics and philosophy uses the concept of metalanguage. Metalanguage is the language used for the analysis of object language. Thus, a metalanguage may be thought of as a language about another language. A metatext is a text in metalanguage about a text in object language. For instance, an article in a fashion magazine is a metatext about the text of clothes. Or, HTML file is a metatext which describes the text of a Web page.