“…Many studies now suggest that word learning is a drawn out process, with the longterm retention of a new word benefitting from repetition (e.g., Horst, 2013;McMurray, Horst, & Samuelson, 2012), retrieval practice (e.g., Goossens et al, 2014aGoossens et al, , 2014bKarpicke & Roediger, 2007;Hulme & Rodd, 2021;van den Broek et al, 2013van den Broek et al, , 2018, and reactivation during sleep (see James et al, 2017, for a review). For example, according to a Complementary Learning Systems (CLS) account (McClelland, McNaughton, & O'Reilly, 1995) as applied to word learning (Davis & Gaskell, 2009), encountering a new word rapidly leads to the formation of a short-term hippocampal memory trace.…”