Diaspora offers a fruitful and narrower approach to language and mobility than the study of globalization. By making the historical footprint of mobility evident, diaspora allows analysts to identify the tension between ideologies of language and ethnonational belonging, and patterns of mobility that destabilize them. This special issue features a series of case studies of that tension and its linguistic manifestations, and adds empirical evidence to the nuances and histories within diversity and mobility that concepts such as “globalization” and “superdiversity” can obscure. Further, the notion of diaspora has not been explored with the same rigor in linguistics as it has in other fields. Sociolinguistics stands to benefit from integrating a more nuanced understanding of diaspora into our key questions and assumptions in order to advance the field's critical capacity to respond to complexity. Diaspora sociolinguistics is able to trace and discuss those social processes that are crucial to shaping linguistic repertoires and linguistic behavior—transnationalism, racialization, negotiation of gender and class dynamics, generational differences, and more—with empirical detail and historical embedding. Increased theorization will contribute to new and perennial guiding questions in the field and allow sociolinguists to define the questions we ask about language in diaspora with rigor.

中文翻译：

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导言：流动性、多语种和变化：迈向更新的侨民社会语言学

与全球化研究相比，侨民提供了一种富有成效且范围更窄的语言和流动性方法。通过使流动的历史足迹显而易见，侨民使分析师能够识别语言意识形态和民族归属之间的紧张关系，以及破坏它们稳定的流动模式。本期特刊以一系列关于这种张力及其语言表现的案例研究为特色，并为“全球化”和“超级多样性”等概念可能掩盖的多样性和流动性中的细微差别和历史增加了经验证据。此外，在语言学中还没有像在其他领域那样严格地探索侨民的概念。社会语言学将从对侨民更细致入微的理解融入我们的关键问题和假设中受益，以提高该领域应对复杂性的关键能力。侨民社会语言学能够追踪和讨论那些对塑造语言曲目和语言行为至关重要的社会过程——跨国主义、种族化、性别和阶级动态的协商、代际差异等——具有经验细节和历史嵌入。增加的理论化将有助于在该领域提出新的和常年的指导问题，并允许社会语言学家严格定义我们提出的关于侨民语言的问题。侨民社会语言学能够追踪和讨论那些对塑造语言曲目和语言行为至关重要的社会过程——跨国主义、种族化、性别和阶级动态的协商、代际差异等——具有经验细节和历史嵌入。增加的理论化将有助于在该领域提出新的和常年的指导问题，并允许社会语言学家严格定义我们提出的关于侨民语言的问题。侨民社会语言学能够追踪和讨论那些对塑造语言曲目和语言行为至关重要的社会过程——跨国主义、种族化、性别和阶级动态的协商、代际差异等——具有经验细节和历史嵌入。增加的理论化将有助于在该领域提出新的和常年的指导问题，并允许社会语言学家严格定义我们提出的关于侨民语言的问题。