Bilingualism and Multilingualism: Bilingualism and Bilinguality

Abstract

Abstract Bilingualism/multilingualism is a complex, global phenomenon shaped by individual, social, political, and emotional factors. It encompasses the acquisition and use of two or more languages across diverse life stages and sociocultural contexts. This entry distinguishes between bilingualism —a societal‐level phenomenon—and bilinguality , which reflects the cognitive, emotional, and identity‐related experiences of individuals navigating multiple languages. Drawing on the foundational work of Hamers and Blanc (1983) and subsequent scholars, the entry explores key typologies (e.g., balanced, productive, and receptive bilinguals), acquisition contexts (simultaneous/sequential vs. adult), and sociolinguistic classifications (e.g., territorial vs. personal bilingualism, etc.). Longstanding misconceptions rooted in monolingual bias, highlighting the paradigm shift initiated by Peal and Lambert (1962), the cognitive advantages of balanced bilinguals are examined. Furthermore, the entry examines the emergence of mixed linguistic systems—such as code‐switching, translanguaging, pidgins, and creoles—arising from language contact and shaped by sociocultural forces. Bilinguals are not simply two monolinguals in one brain but are distinct cognitive and social individuals. Research on bilingual language use (e.g., language organization in the mind/brain—private vs. public language), accent evaluation and trauma due to social exclusion, and social identity reveals the deep interconnection of language with power, ideology, and identity.

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