Bilingualism by Agnes Lam Bilingualism refers to the phenomenon of competence and communication in two languages.Bilingual means someone who has the ability to communicate in two languages alternately.A bilingual society is one in which two languages are used for communication. Bilingualism: 1) Monolingual or communicative norms 2) Relative competence in two languages 3) Domains 4) Components Apart from bilingual abilities involving two languages,individuals may also have bidialectal or biscriptural abilities within one language. Bidialectalism refers to the phenomenon whereby someone can communicate in more than two dialects of the same language. Biscriptural competence can be written both in the new simplified script and the traditional complex script. Psycholinguistic studies of bilingualism have asked questions such as: how do we become bilingual? How are the two languages represe