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.
The company previously argued in court documents that R.K.C. used Facebook and Instagram for less than 10 minutes a day on average and had created the accounts only six months before filing the lawsuit.
From The Wall Street Journal ● Jul. 22, 2026
I see the same thing happening on social-media forums, subreddits, Facebook groups and the like.
From MarketWatch ● Jul. 22, 2026
Her father, Joshua Hottle, posted a video statement via Facebook, using American Sign Language to confirm details of her death.
From BBC ● Jul. 21, 2026
The target of the Danish group's wrath is an advertising campaign that was "aired during recent, widely viewed global sporting broadcasts and on TikTok and Facebook, causing widespread confusion," it said.
From Barron's ● Jul. 21, 2026
Chantal is the one who posts links to articles and sends me messages on Facebook.
From "American Street" by Ibi Zoboi
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.
