“…Such interdisciplinary approaches facilitate the creation of a new, deeper understanding of what it means to acquire L2 lexical knowledge and how this knowledge is stored and accessed, establishing more precise theoretical accounts of acquisition, learning, processing, and use. Novel methods of data collection and analysis, combined with researchers adopting open science practices of sharing data and instruments, increase the robustness and transparency of the findings, make them more accessible for replications and suitable for meta-analyses, and bring L2 vocabulary research in line with current science research standards (Brysbaert and Stevens, 2018; Lindstromberg, 2016; Lindstromberg and Eyckmans, 2017; Marsden, Morgan-Short, Thompson, and Abugaber, 2018; Marsden and Plonsky, 2018; Porte, 2012; Rebuschat et al, 2017). Below we elaborate on the theoretical, empirical, and methodological contributions of the five articles included in this special issue and detail new insights into different aspects of L2 lexical acquisition and processing offered by these interdisciplinary and methodologically innovative studies.…”