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.
In a post on Facebook, West Mersea Coastguard Rescue Team said it had been called to a "tragic incident" on the beach and its thoughts were with the family involved.
From BBC ● Jul. 23, 2026
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
The AI lab behind the Claude chatbot is also in talks for a deal worth billions to use infrastructure belonging to Facebook and Instagram parent Meta, according to media reports.
From Barron's ● Jul. 21, 2026
The Facebook page has hit a plateau of 540 followers, and the GoFundMe donations have stalled.
From "A Heart in a Body in the World" by Deb Caletti
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.
