“…The lexicon is key to the development of language competence and can be built by working on multiple linguistic facets of words, whether phonetic, morphological, syntactic or semantic (Charmeux, 2010; Mel'čuk, Polguère, 2007;Picoche, 1993;Scott, Nagy, 2009). Some studies have focused on the more specific issues of teaching collocations (Lewis, 2000; Binon, Verlinde, 2004;Frassi, 2018;Tutin, Grossmann, 2002) and of phraseological units (Cavalla, Labre, 2009) by showing that their learning is necessarily the basis of any complete lexical training and that a void among L2 learners could constitute a real obstacle to understanding and producing a language. Promoting the learning of phraseology is therefore imperative.…”