US /ˈfeɪs.bʊk/
UK /ˈfeɪs.bʊk/
商標
フェイスブック
a social networking service where users can post comments, share photographs and links to news or other interesting content, play games, chat live, and stream live video. It was founded in 2004 by Mark Zuckerberg with his college roommates and fellow Harvard University students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes.
例:
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I saw your post on Facebook.
Facebookであなたの投稿を見ました。
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She spends hours every day on Facebook.
彼女は毎日何時間もFacebookに費やしています。