Monolingualism

Monoglottism (Greek μόνοσ monos, "alone, solitary", + γλώττα glotta, "tongue, language") or, more commonly, monolingualism or unilingualism, is the condition of being able to speak only a single language, as compared to multilingualism. In a different context, "unilingualism" may refer to a language policy which enforces an official or national language over others.

Being monolingual or unilingual is also said of a text, dictionary, or conversation written or conducted in only one language, and of an entity in which a single language is either used or officially recognized (in particular when being compared with bilingual or multilingual entities or in the presence of individuals speaking different languages). Note that monoglottism can only refer to lacking the ability to speak several languages. Multilingual speakers outnumber monolingual speakers in the world's population.

Romaine (1995) pointed out in her book Bilingualism that it would be weird to find a book titled Monolingualism. This statement reflects the traditional assumption that linguistic theories often take on: that monolingualism is the norm. Monolingualism is thus rarely the subject of scholarly publications, as it is viewed to be an unmarked or prototypical concept where it has the sense of being normal and multilingualism is the exception.