Which major dictionary publisher dramatically simplified its logo in 2014 by removing what linguistic element from its visual identity?

Logos are visual manifestations of a brand's identity, but they often incorporate linguistic elements that evolve over time. The relationship between language and visual branding is a fascinating aspect of marketing communication. This poll tests your knowledge about how language has been used in famous logo evolutions throughout history.

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Merriam-Webster removed the hyphen between the founders' names
Oxford Dictionary removed its Latin motto 'Dominus Illuminatio Mea'
Cambridge Dictionary removed the spelling of 'Dictionary' and kept only its icon
Collins Dictionary removed the pronunciation guide from beneath its name