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.
Companies including Intuit, Cisco and Facebook parent Meta Platforms have announced cuts in recent months, citing AI.
From The Wall Street Journal ● Jul. 28, 2026
The detective’s Facebook friends urged her to make her post public, so she did — screenshots of Salute’s court records, her mug shot and her new school photo.
From Salon ● Jul. 27, 2026
Follow BBC Sussex on Facebook, external, on X, external, and on Instagram, external and listen to BBC Radio Sussex on Sounds.
From BBC ● Jul. 27, 2026
The Climate Group's website no longer lists Meta, the company behind Facebook and Instagram, as a member.
From Barron's ● Jul. 25, 2026
I check my Facebook quickly before getting started, a red notification for an invite to a Senior Trip Beach Blast this Friday night in Cabo popping up.
From "Five Feet Apart" by Rachael Lippincott
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.
