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.
They flooded Facebook groups with comments and huge banners that read: “Don’t data center my Hood County” at their property fencelines.
From Salon • Jun. 6, 2026
By then, I was no longer just the guy from Facebook Marketplace.
From Los Angeles Times • Jun. 5, 2026
Kristie Frederick Daugherty, a Swiftie, poet and author, says Swift-centric forums she's part of across Facebook, Instagram, Substack and Reddit feature fans showing "a ton of respect for the privacy that she's wanting".
From BBC • Jun. 5, 2026
A Facebook account under the name Tom McGregor showed photos of Pauken and his family visiting Washington in February shortly before his arrest.
From The Wall Street Journal • Jun. 5, 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.
