verb (used with object)
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to communicate with (a person) or search for information about (a person) by using Facebook.
My old girlfriend just facebooked me.
His future employer Facebooked him and decided to withdraw the job offer.
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to post on Facebook.
I facebooked some photos of my cat.
You should Facebook the event so more people will show up.
verb (used without object)
noun
verb
Spelling
The official trademarked name of the social media platform and website is now styled in all capital letters “FACEBOOK,” though prior to 2020 the trademarked style was “facebook,” in all lowercase letters. Formal writing—as exemplified by most news and book publishers—treats such names as regular proper nouns, in this case “Facebook,” using an initial capital letter, but not all caps. However, when a trade name begins with a lowercase letter followed by an uppercase one, such as eBay or iPad, this spelling is retained, even at the beginning of a sentence.
Etymology
Origin of Facebook
First recorded in 2000–05; from facebook, a college student directory with personal photos and basic information
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He posted a message on Facebook making clear he intended to rebuild his party: "The work begins. Let's reorganise ourselves and keep fighting for the Hungarian people!"
From BBC • Apr. 15, 2026
The owner of Instagram and Facebook has fueled growth with new advertising products and AI.
From The Wall Street Journal • Apr. 13, 2026
The falsehoods -- circulating across tech platforms including X, TikTok and Facebook -- have also added fresh fuel to a longstanding conspiracy theory that NASA's 1969 Apollo 11 moon landing was faked.
From Barron's • Apr. 11, 2026
Levitan, an Occidental College professor, attended with others from Parents Supporting Teachers, a 30,000-member Facebook group.
From Los Angeles Times • Apr. 10, 2026
Now on the city streets, the kids looked like American kids, busy with their cell phones, scrolling through Twitter and Facebook.
From "How Dare the Sun Rise" by Sandra Uwiringiyimana
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
