Which famous dictionary brand used the tagline "The most trusted dictionary of American English" to highlight its linguistic authority?

In the language industry, clever wordplay and linguistic innovation have created some of the most memorable advertising taglines of all time. Language service providers, dictionary publishers, and educational platforms all rely on powerful linguistic branding to connect with their audiences. This trivia tests your knowledge of famous taglines that specifically leverage linguistic elements to promote language-related products and services.

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Merriam-Webster
Oxford English Dictionary
Collins Dictionary
Cambridge Dictionary