Malaysian language subject in primary and secondary schools. Article 152 of the Federation designates Malay as the official language. Between 1986 and 2007, the official term "Bahasa Malaysia" was replaced by ""Bahasa Melayu"". Today, to recognise that Malaysia is composed of many ethnic groups (and not only the ethnic Malays), the term "Bahasa Malaysia" has once again become the government's preferred designation for the ""Bahasa Kebangsaan"" (National Language) and the ""Bahasa Persatuan/Pemersatu"" (unifying language/lingua franca). The language is sometimes simply referred to as "BM" and often misnomered with the term "Bahasa". English continues, however, to be widely used in professional and commercial
Mixed language to Matras, is defined as "the conscious shifting of the linguistic field that is responsible for encoding meaning or conceptual representations away from the language in which linguistic interaction is normally managed, organised, and processed: speakers adopt in a sense one linguistic system to express lexical meaning (or symbols, in the Buhlerian sense of the term) and another to organize the relations among lexical symbols, as well as within sentences, utterances, and interaction. The result is a split, by source language, between lexicon and grammar." A mixed language differs from pidgins, creoles and code-switching in very fundamental ways. In most