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.
Nepal’s Prime Minister Balendra Shah said in a Facebook post that rescue efforts are focusing on these workers, some of whom are trapped in tunnels.
From The Wall Street Journal ● Aug. 29, 2026
Despite this, the name has been absolutely blanketed across social media: TikTok, Facebook, YouTube, Threads, even Pinterest.
From Slate ● Aug. 28, 2026
Follow BBC Kent on Facebook,, external X, external and on Instagram, external and listen to BBC Radio Kent on Sounds.
From BBC ● Aug. 28, 2026
On Wednesday, Meta agreed to pay up to $17 billion over 10 years and make changes to Facebook and Instagram to try to make the platforms safer for teens and those younger.
From Los Angeles Times ● Aug. 28, 2026
Because he thinks Facebook is the lowest common denominator of social discourse.
From "Simon vs. the Homo Sapiens Agenda" by Becky Albertalli
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.
