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.
She shared a photo in the Amateur Microscopy Facebook group she frequents, noting it’s “the most famous algae in the world right now!!”
From Slate • Jun. 27, 2026
Without natural light, he hard-wired sconces found on Facebook Marketplace that recall ornamental 18th century candlesticks.
From Los Angeles Times • Jun. 26, 2026
Follow BBC Surrey on Facebook,, external on X, external and on Instagram,, external and listen to BBC Radio Surrey on Sounds.
From BBC • Jun. 26, 2026
Facebook and Instagram parent Meta Platforms has captured more than 80% of this market, but in 2025 that meant selling just seven million pairs of glasses.
From The Wall Street Journal • Jun. 26, 2026
“Twitter may launch the feature as soon as next month. Facebook may need a little more time.”
From "They Both Die at the End" by Adam Silvera
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.
