From a consideration of variability in language-learner and language-user data, the concept of proficiency is considered in relation to models of second and foreign language learning. Proficiency is defined in relation to four separate dimensions: grammatical well-formedness, speech-act rules, functional elaboration, and code diversity. This…

Essays on lexicon and vocabulary development, all in French, address these topics: bilingual lexicon in the context of translation; lexical and conceptual representation in bilinguals; pronouns in "existential" constructions in French and English; configurational functions within grammar; Gustaf Stern's diachronic semantic schema; the…