Which innovative product feature did the Oxford English Dictionary first introduce in 2014 that revolutionized how dictionaries track language evolution?

Language evolves constantly to reflect cultural and technological changes. Dictionaries play a crucial role in documenting this evolution by adding new words that capture emerging trends, technologies, and cultural phenomena. Major dictionary publishers have specific product development processes for selecting which new words enter their lexicons each year. This poll tests your knowledge about how dictionary companies innovate their products to stay relevant in the digital age.

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The OED launched a crowdsourced word submission portal where the public could suggest and vote on new entries
The OED began releasing quarterly updates of new words instead of waiting for full editions, adapting to rapid language change
The OED introduced an AI-powered system that automatically detects and adds new words from internet sources
The OED created a subscription-based mobile app with pronunciation guides for all entries