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.
Meta added it had notified the Facebook users who had their images downloaded and had since upgraded its security systems.
From BBC • Apr. 7, 2026
Sullivan, a hospital mobility technician, started a Facebook group for popcorn bucket collectors in 2024.
From Los Angeles Times • Apr. 6, 2026
According to the Pew Research Center, more than half of American adults now get at least some of their news from social media platforms like Facebook, YouTube, X and TikTok.
From Salon • Apr. 5, 2026
And the company’s recent courtroom losses raise the possibility of the Facebook and Instagram parent facing big legal charges down the road.
From The Wall Street Journal • Apr. 4, 2026
Kosi was active on Facebook, she put up photos and kept in touch with people, but he had deleted his account a while ago.
From "Americanah" by Chimamanda Ngozi Adichie
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.
