“…Understanding a text requires knowing meanings of most of the words within it (Nagy & Scott, 2000), and a meta-analysis of experimental studies indicates a causal relationship between vocabulary and reading comprehension (Elleman et al, 2009). As children develop proficiency in word reading, vocabulary and broader language skills play an increasingly important role in text comprehension (Foorman et al, 2018;Oslund et al, 2018). Unfortunately, many children with language-based learning difficulties, such as dyslexia and developmental language disorder (DLD), demonstrate difficulty learning new words (Alt et al, 2019;Kan & Windsor, 2010;Thomson & Goswami, 2010), and this reduced vocabulary, in turn, negatively impacts reading comprehension, academic progress, employment opportunities, and quality of life (Braze et al, 2007;Conti-Ramsden & Durkin, 2012;Johnson et al, 2010).…”