Mapping Contemporary Vocabulary Research: Innovation, Integration, and Impact

Abstract

Vocabulary research has gained significant traction among second language (L2) researchers since the 1980s, driven by a growing recognition of its foundational role in language learning (Webb, 2020). As Wilkins (1972, p. 111) noted, “Without grammar very little can be conveyed. Without vocabulary, nothing can be conveyed.” Given the high correlation between vocabulary size and language proficiency, mastering lexical items is widely accepted as an essential component of L2 acquisition, acting as a vital catalyst for early and advanced language development alike (Schmitt, 2010). While traditional research focused predominantly on individual, single-word units, the 2000s saw a surge in the popularity of formulaic language and multi-word expressions (Wray, 2002). These formulaic sequences are just as critical as single words because they permeate native spoken and written discourse while directly enhancing L2 learners’ fluency (Schmitt, 2010). However, building a comprehensive lexicon, encompassing both single words and complex collocations, presents a dual challenge for learners and instructors, as the sheer volume of necessary words cannot be achieved through explicit, intentional instruction alone (Teng, 2023). Consequently, contemporary researchers must examine not only what types of vocabulary are learned, but also how they are acquired across explicit, intentional tasks and subconscious, meaning-focused incidental input (Teng, 2023). To showcase cutting-edge developments in these areas, this special issue brings together papers that explore both single-word vocabulary and multi-word expressions, investigating the diverse input sources and cognitive strategies that drive comprehensive lexical development.

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