Which major retailer published a comprehensive dictionary in 1930 that became a valuable resource for linguists studying regional American English vocabulary and pronunciation?

The intersection of language and retail has created fascinating innovations in how companies communicate with customers. From specialized dictionaries for shoppers to language-based marketing strategies, retailers have found creative ways to leverage linguistics. This trivia question explores how one famous retailer made a significant contribution to language documentation that continues to influence linguistic scholarship today.

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Sears, Roebuck and Co.
Montgomery Ward
Macy's Department Store
Woolworth's Five and Dime