Which dictionary publisher first introduced the innovative 'defining vocabulary' system that uses only 2,000-3,000 common words to define all other terms, making definitions more accessible to language learners?

In the world of language and linguistics, marketing and branding play a fascinating role in how companies communicate with their audiences. Linguistic techniques in advertising can create powerful brand identities through carefully chosen words, phrases, and slogans. This poll tests your knowledge of a significant linguistic innovation in the dictionary publishing industry that revolutionized how we access language information.

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Oxford University Press
Longman (Pearson)
Merriam-Webster
Cambridge University Press