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.
Friends of Big Bear Valley noted in a Facebook post that a bird is not considered hatched until it is completely free of the shell.
From Los Angeles Times • Apr. 5, 2026
She is far from alone, in fact, there are more than 4,500 members on the UK Cat Walkers Facebook group.
From BBC • Apr. 5, 2026
According to 20k, a Hungarian election integrity watchdog tracking the social media activity of political actors during the election, Magyar's posts on Facebook, TikTok, and Instagram receive twice the level of engagement of Orbán's.
From BBC • Apr. 4, 2026
NAR evangelist Sean Feucht posted to Facebook: “President Trump posts the exact prophetic word about him from Kim Clement in Redding, California in 2007.”
From Salon • Apr. 4, 2026
My fragile heart would not have survived seeing up-to-the-minute photos of my friends and classmates on Facebook or Instagram or Snapchat.
From "Americanized" by Sara Saedi
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.
