Variability is characteristic of any living language. This volume approaches the ‘life cycle’ of linguistic variability in English using data sources that range from electronic corpora to the internet. In the spirit of the 1968 Weinreich, Labov and Herzog classic, the fifteen contributions divide into three sections, each highlighting different stages in the dynamics of English across time and space. They show, first, how increase in variability can be initiated by processes that give rise to new patterns of discourse, which can ultimately crystallize into new grammatical elements. The next phase is the spread of linguistic features and patterns of discourse, both new and well established, through the social and regional varieties of English. The final phase in this ebb and flow of linguistic variability consists of processes promoting some variable features over others across registers and regional and social varieties, thus resulting in reduced variation and increased linguistic homogeneity.

Recent work in applied linguistics has expanded our understanding of the rule governed nature of language. The concept of an idealized speaker -hearer whose linguistic competence is abstract and separate from reality has been enriched by the notion of an actual interlocutor who possesses communicative compe tence, a knowledge of language which accounts for its use in real-world con texts. Areas of variation previously relegated to idiosyncratic differences in performance have been found to be dynamic yet consistent and lend themselves to study and systematic description. Because language acquisition involves the development of communicative competence, by its very nature it incorporates variation and systematicity. Sec ond-language acquisition is similarly variable, since interlanguage is subject to the same universal and language-specific conventions. In addition, aspects of the second language have been found to be unevenly acquired and are differ entially reflected in particular contexts or settings. Yet, despite our expanding knowledge, this variability is only beginning to be treated in much of the sec ond-language acquisition literature. This volume presents the work of some researchers and methodologists who have taken on the challenge of including variation in their research designs and pedagogical recommendations. Variation is shown to be relevant to lin guistic, social, and psychological aspects of language. It is apparent in the registers and dialects of the target language and in the inter language of learners.

Variability is characteristic of any living language. This volume approaches the 'life cycle' of linguistic variability in English using data sources that range from electronic corpora to the internet. In the spirit of the 1968 Weinreich, Labov and Herzog classic, the fifteen contributions divide into three sections, each highlighting different stages in the dynamics of English across time and space. They show, first, how increase in variability can be initiated by processes that give rise to new patterns of discourse, which can ultimately crystallize into new grammatical elements. The next phase is the spread of linguistic features and patterns of discourse, both new and well established, through the social and regional varieties of English. The final phase in this ebb and flow of linguistic variability consists of processes promoting some variable features over others across registers and regional and social varieties, thus resulting in reduced variation and increased linguistic homogeneity.

This volume explores how the patterning of surface variation can shed light on the grammatical representation of variable phenomena. The authors explore variation in several domains, addressing intra- and inter-dialectal patterns, using diverse sources of data including corpora of naturally-occurring speech and judgment studies, and drawing on lesser-studied varieties of familiar languages, such as Northwest British Englishes and varieties of Canadian French. Ultimately, the contributions serve to expand our understanding of the nature of the mental representations and abstract processes required to support variation in language. Originally published as special issue of Linguistic Variation 16:2 (2016)

Dynamic Variation in Second Language Acquisition makes a cutting-edge contribution to knowledge about how second language learners develop their second language. Drawing comprehensively on Processability Theory’s theoretical understanding that individual variation dynamically interacts with ordered stages of language acquisition, the book provides an informative, critical analysis of historical and contemporary debates about the role of variation in linguistic variation, particularly second language variation. Richly illustrated with a forensic year-long study of how eight adolescent learners of English vary in their acquisition of syntax and morphology, this monograph shows that learners vary in their timing of development between two distinct learner types along a continuum and without skipping stages. The book uncovers how learner variation is dynamic and quite (although not entirely) systematic and how this variation contributes to change in the second language. It will be essential reading for researchers, students, and practitioners.

Linguistic variation is a topic of ongoing interest to the field. Its description and its explanations continue to intrigue scholars from many different backgrounds. By taking a deliberately broad perspective on the matter, covering not only crosslinguistic and diachronic but also intralinguistic and interspeaker variation and examining phenomena ranging from negation over connectives to definite articles in well- and lesser-known languages, the volume furthers our understanding of variation in general. The papers offer new insights into, among other things, the theoretical notion of comparative concepts, the social or mental nature of language structure, the areal factor in lexical typology and the diachronic implications of semantic maps. The collection will thus be of relevance to typologists and historical linguists, as well as to people studying variation within the areas of cognitive and functional linguistics.

This series of HANDBOOKS OF LINGUISTICS AND COMMUNICATION SCIENCE is designed to illuminate a field which not only includes general linguistics and the study of linguistics as applied to specific languages, but also covers those more recent areas which have developed from the increasing body of research into the manifold forms of communicative action and interaction. For "classic" linguistics there appears to be a need for a review of the state of the art which will provide a reference base for the rapid advances in research undertaken from a variety of theoretical standpoints, while in the more recent branches of communication science the handbooks will give researchers both an verview and orientation. To attain these objectives, the series will aim for a standard comparable to that of the leading handbooks in other disciplines, and to this end will strive for comprehensiveness, theoretical explicitness, reliable documentation of data and findings, and up-to-date methodology. The editors, both of the series and of the individual volumes, and the individual contributors, are committed to this aim. The languages of publication are English, German, and French. The main aim of the series is to provide an appropriate account of the state of the art in the various areas of linguistics and communication science covered by each of the various handbooks; however no inflexible pre-set limits will be imposed on the scope of each volume. The series is open-ended, and can thus take account of further developments in the field. This conception, coupled with the necessity of allowing adequate time for each volume to be prepared with the necessary care, means that there is no set time-table for the publication of the whole series. Each volume will be a self-contained work, complete in itself. The order in which the handbooks are published does not imply any rank ordering, but is determined by the way in which the series is organized; the editor of the whole series enlist a competent editor for each individual volume. Once the principal editor for a volume has been found, he or she then has a completely free hand in the choice of co-editors and contributors. The editors plan each volume independently of the others, being governed only by general formal principles. The series editor only intervene where questions of delineation between individual volumes are concerned. It is felt that this (modus operandi) is best suited to achieving the objectives of the series, namely to give a competent account of the present state of knowledge and of the perception of the problems in the area covered by each volume.