Code-Switching in Relation to Other Language-Contact Phenomena: A Theoretical Account

Research on code-switching (CS) has witnessed a major terminological issue, especially with regard to its relation to other concepts of language contact phenomena. CS, as a research area, is troubled with the question of terminological confusion. Sometimes, researchers use different labels to indicate the same notion; in others, they use the same term to refer to distinct notions. Hence, there is no definite consensus on the territory covered by the terms related to the CS phenomenon such as CM, borrowing, transfer and so on. This article attempts to explore and clarify these terms and examine their similarity or distinction to CS. The latter is reviewed in comparison to four close and interrelated linguistic phenomena, namely code-mixing, diglossia, borrowing, and interference. This review is based on reviewing the literature and reflecting on it.