Which famous dictionary brand used the tagline 'The Dictionary Preferred by 9 out of 10 Language Experts' to establish its linguistic authority in the market?

In the world of language and linguistics, brand taglines and slogans often become part of our everyday vernacular. These carefully crafted phrases are designed by linguistic experts to be memorable, evocative, and representative of a brand's values. This trivia tests your knowledge about a famous dictionary brand's tagline that revolutionized how reference materials positioned themselves in the market, blending educational authority with accessibility.

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Merriam-Webster
Oxford English Dictionary
Collins Dictionary
American Heritage Dictionary