prob·​a·​bly | \ ˈprä-bə-blē How to pronounce probably (audio) , ˈprä(b)-blē \

Definition of probably

: insofar as seems reasonably true, factual, or to be expected : without much doubt is probably happy it will probably rain

Keep scrolling for more

Synonyms & Antonyms for probably



Visit the Thesaurus for More 

Examples of probably in a Sentence

The impact probably added all but the last few percent of Earth's mass and set the stage for Earth's and the Moon's subsequent evolution. — Mark Wilson, Physics Today, February 2008 It was no secret that McKay preferred the thrill of victory to the agony of defeat, and that, along with his innocent optimism and snark-free sincerity, probably makes him hopelessly old-fashioned. — Richard Hoffer, Sports Illustrated, 16 June 2008 But what these newly inaugurated gym rats probably don't know is that besides buffing up their bodies for summer, they're also buffing up their brains. — Christen Brownlee, Science News, 25 Feb. 2006 It will probably rain today. They will probably be here soon. It was probably the best concert I've ever been to. There were probably about 150 people at the wedding. “Are you going to the picnic?” “Probably.” “Can you finish painting the room today?” “Probably not.”
See More
Recent Examples on the Web Yet despite its rich history, the best sustained era of Ohio State football success probably lies in the future. Nathan Baird, cleveland, "Is an Alabama-like dynasty attainable for Ohio State football, or anyone else?," 16 Feb. 2021 In most countries, their design will probably resemble existing online payment platforms, with one key difference: money held on a CBDC app or website will be equivalent to a deposit at the central bank. The Economist, "What is the fuss over central-bank digital currencies?," 16 Feb. 2021 Kent figured out what probably happened by looking at the atmosphere and climate at the time. Seth Borenstein, ajc, "Some dinosaur migration was delayed by climate, study shows," 16 Feb. 2021 That’s probably one of the main differences, Pearl said. Giana Han, al, "Rescheduled Auburn - Mississippi State game to feature some of nation’s best young players," 16 Feb. 2021 After months of swirling in circles in a tiny social snow globe that cozily includes your seemingly complacent quad set, your wife probably can’t see beyond her bubble contentment for any reasons to change it. Author: Wayne And Wanda, Anchorage Daily News, "My wife wants only a couple friends in our pandemic bubble: Her friends," 14 Feb. 2021 The one thing about Edwin [Maldonado] is he’s probably one of the best speed gate riders there is. John Cherwa, Los Angeles Times, "Horse racing newsletter: Tierney’s ‘Takes on TV’ is back," 14 Feb. 2021 This probably comes from the pole vault at track-and-field events. James Lileks, Star Tribune, "Lileks: If there's no office, can we dump office jargon?," 14 Feb. 2021 Given the year and that it was probably taken in San Antonio, the message may allude to demobilization doldrums. Paula Allen, San Antonio Express-News, "Reader wants to return century-old postcard of soldiers in San Antonio to sender's family," 13 Feb. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'probably.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of probably

1600, in the meaning defined above

History and Etymology for probably

see probable entry 1

Keep scrolling for more

Learn More about probably

Time Traveler for probably

Time Traveler

The first known use of probably was in 1600

See more words from the same year

Statistics for probably

Last Updated

21 Feb 2021

Cite this Entry

“Probably.” Dictionary, Merriam-Webster, Accessed 4 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Keep scrolling for more

More Definitions for probably



English Language Learners Definition of probably

: very likely : almost certainly


prob·​a·​bly | \ ˈprä-bə-blē How to pronounce probably (audio) \

Kids Definition of probably

: very likely With dark clouds like those, it will probably rain.

Keep scrolling for more

Comments on probably

What made you want to look up probably? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Who Knew?

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Anagram puzzles meet word search.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!