Which dictionary publisher first implemented AI-powered contextual language learning that adapts to user behavior and creates personalized vocabulary expansion recommendations?

The dictionary market has seen remarkable technological innovations in recent years, with major publishers investing heavily in digital features that transform how we interact with language. From pronunciation tools to etymology trackers, these companies are revolutionizing lexicographical products to meet modern needs. Test your knowledge of cutting-edge dictionary product development in this challenging trivia question!

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Oxford University Press with their 'Oxford Adaptive Learning' system (2019)
Merriam-Webster with their 'WordGenius' platform (2018)
Cambridge Dictionary's 'LexiLearn' technology (2020)
Collins Dictionary's 'VocabVision' algorithm (2021)