probably
Americanadverb
adverb
Usage
What does probably mean? Probably means most likely or in all likelihood. Probably is the adverb form of the adjective probable, meaning “very likely to occur or be true.” Probably is used when you think something will happen or turn out to be true, but you’re not certain enough to say it definitely will. Example: My flight will probably arrive within the next few hours, but I can’t guarantee it.
Etymology
Origin of probably
Explanation
If something probably will happen, it's likely. If it probably won't happen, don't get your hopes up. This is a word for things that are likely to happen or just believable. If your dinner is gone and your dog looks guilty, the dog probably jumped on the table to eat it. If someone moved all the furniture around while you were sleeping, you probably would have noticed. Given all the billions of stars in the sky, there's probably life out there, but who knows if we'll ever meet it. You probably like some foods better than others.
Vocabulary lists containing probably
Jim Burke's Academic Vocabulary List
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SHSAT: Language of the Test
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Cormac McCarthy's "The Road"
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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 letter echoed something Altman himself had said back in 2015: that “superhuman machine intelligence is probably the greatest threat to the continued existence of humanity.”
From The Wall Street Journal • Jul. 12, 2026
Without the use of video replays, its unlikely any of those calls would have been made and the World Cup quarterfinals would probably look quite different.
From Los Angeles Times • Jul. 12, 2026
It’s probably not a great idea to regulate your entire food system based on vibes.
From Slate • Jul. 12, 2026
But that's probably not where most Americans know him from.
From BBC • Jul. 11, 2026
“Ed—” I started, and then realized that he was probably supposed to call me by my last name, or something else official.
From "The Brightwood Code" by Monica Hesse
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.
