Which of these brand names has NOT been officially recognized as a generic term in major English dictionaries, despite popular usage?

Many global brands have had profound impacts on language itself! Some brand names become so ubiquitous they enter our everyday vocabulary as generic terms (a process called 'genericization'). This phenomenon showcases how marketing and language evolution intersect in fascinating ways. Test your knowledge about brands that have shaped the way we speak!

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Google (as a verb meaning 'to search the internet')
Kleenex (as a generic term for facial tissues)
Xerox (as a verb meaning 'to photocopy')
Band-Aid (as a generic term for adhesive bandages)