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Definition of Facebook™ noun from the Oxford Advanced Learner's Dictionary

Facebook™

noun
 
/ˈfeɪsbʊk/
 
/ˈfeɪsbʊk/
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  1. a very popular social media website
    • on Facebook Are you on Facebook?
    • via Facebook We keep in touch via Facebook.
    • They posted the picture on the team's Facebook page.
    Topics Phones, email and the interneta2
See Facebook in the Oxford Advanced American Dictionary
previously
adverb
 
 
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