Why would you say that "geometry diagrams" are not a language? Google, define language: lan·guage ˈlaNGɡwij/Submit noun 1. the method of human communication,

Why would you say that "geometry diagrams" are not a language? Google, define language: lan·guage ˈlaNGɡwij/Submit noun 1. the method of human communication, either spoken or written, consisting of the use of words in a structured and conventional way. "a study of the way children learn language" 2. the system of communication used by a particular community or country. "the book was translated into twenty-five languages" synonyms: tongue, mother tongue, native tongue; More I would say "geometry diagrams" are a language, by the second definition.