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.
Many of the Facebook comments were from people who had no solutions but wanted to commiserate.
From The Wall Street Journal • Apr. 11, 2026
Lai said in a Facebook post on Friday that "China's... military threats in and around the Taiwan Strait and the island chain have severely undermined regional peace and stability".
From Barron's • Apr. 10, 2026
He added in a video message on Facebook that he wanted the public to hear directly from him and again denied the allegations.
From BBC • Apr. 10, 2026
A quick online search will prompt a flurry of Reddit and Facebook discussion about where the flute man — dubbed the mystical flute man by many — is located now.
From Los Angeles Times • Apr. 9, 2026
“So, Facebook group,” Wanda said, wiping at a glassy eye.
From "Anger Is a Gift" by Mark Oshiro
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.
