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Global age of acquisition of L1 and L2 in individual speakers has been investigated as a deterministic factor in nativelikeness of grammatical knowledge and lexical processing. The age of acquisition of individual words has also been shown to affect both native and nonnative lexical access. Given the centrality of the lexicon to language acquisition and use, this study investigated which of these variables is most relevant and how these two variables may potentially interact during lexical access of the less dominant language in bilinguals. A group of English-speaking late L2 learners of Spanish and a group of early bilingual speakers who were exposed to Spanish as an L1 at home and learned English in childhood (heritage speakers) completed a lexical decision task in Spanish and an English–Spanish translation decision task. The performance of the two groups, which vary on global age of acquisition of Spanish …