\ ˈblast How to pronounce blast (audio) \

Definition of blast

 (Entry 1 of 4)

1a : a violent gust of wind a cold blast of air
b : the effect or accompaniment (such as sleet) of such a gust a blast of freezing rain
2 : the sound produced by an impulsion of air through a wind instrument or whistle the blast of the shofar on Rosh Hashanah the trumpet's blast
3 : something resembling a gust of wind: such as
a : a stream of air or gas forced through a hole
b : a vehement expression of feeling … let out a great blast of mirth …— Marcia Davenport a blast of anger
c : the continuous blowing to which a charge of ore or metal is subjected in a blast furnace
4a : a sudden pernicious influence or effect got a blast of reality when she left home a blast of criticism … virtue preserved from fell destruction's blast— Shakespeare
b botany : a disease of plants marked by the formation of destructive lesions on leaves and inflorescences
5a : an explosion or violent detonation The blast killed eight people. a shotgun blast
b : the shock wave of an explosion felt the blast from several miles away
c sports : a forceful hit (as in baseball) or shot (as in soccer or golf) especially : home run
6 : speed, capacity, operation turned the water on full blast go full blast
7 : an enjoyably exciting experience, occasion, or event I had a blast. Their wedding was a blast. especially : party
8 : the sending of a message (such as a fax or an e-mail) in multiple copies to numerous recipients at one time The campaign then sends Jane targeted messages via canvassers, phone calls, ads, and its increasingly sophisticated email blasts.— Tim Murphy often used before another nouna blast fax
blast from the past
: a striking reminder of an earlier time : something that excites nostalgia This picture is a real blast from the past.


blasted; blasting; blasts

Definition of blast (Entry 2 of 4)

intransitive verb

1 : blare music blasting from the radio
2 : to make a vigorous attack blasting away at her opponent
3a : to use an explosive blast through the wall
b : shoot They walked in and started blasting.
4 : to hit a golf ball out of a sand trap with explosive force
5 : to proceed rapidly or aggressively blasting down the ski slope

transitive verb

1a : to injure by or as if by the action of wind young crops being blasted by the hot dry wind
b : blight The entire crop was blasted by fungus. The injury blasted her dreams of winning a gold medal.
2a : to shatter by or as if by an explosive blasting out nearly all of the building's windows
b : to remove, open, or form by or as if by an explosive blast a hole through the wall blast away these barriers to progress …— Elmer Davis
c : shoot The gunman blasted him down.
3 : to attack vigorously blasting their opponents in the media
4 : to cause to blast off will blast themselves from the moon's surface
5 : to hit vigorously and effectively blasted a home run
6 : to play loudly blasting rock music on the stereo
variants: or blasto-

Definition of blast- (Entry 3 of 4)

: bud : budding : germ blastodisc
\ ˌblast \

Definition of -blast (Entry 4 of 4)

: formative unit especially of living matter : germ : cell : cell layer epiblast

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Examples of blast in a Sentence

Noun She opened the door and felt a cold blast. He was hit by a blast of water from the hose. The driver gave a long blast on his horn. the blast of the factory whistle The bomb blast killed eight people. Verb Workers were blasting rock where the new highway will go. The rock has been blasted away. The explosion blasted a hole in the side of the ship. The mayor was blasted by the local press. The judge blasted the lawyers for delaying the trial. Human rights groups have blasted the government for its treatment of political prisoners. He blasted his rival with a pistol. A gunship blasted enemy headquarters. They blasted the enemy plane out of the sky.
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Recent Examples on the Web: Noun Chris Santiff was sitting at his kitchen table when the blast happened. CBS News, "2 killed in massive warehouse explosion in Houston," 24 Jan. 2020 Following the blasts at housing complexes on the Swedish capital’s northwestern outskirts, some 50 people were evacuated. Time, "Two Predawn Explosions Hit the Swedish Capital Leaving 1 Injured," 21 Jan. 2020 After the blasts comes the fallout, the depthless smoke of nuclear winter, the ensuing end of the crops that sustain our mortal bodies, and the certain starvation of those too unlucky to have survived the war. Ian Bogost, The Atlantic, "World War III Is an Irresistible Meme," 5 Jan. 2020 The blasts appeared to be mortars or rockets that landed inside the heavily fortified Green Zone where the U.S. and other embassies are based, as well as the seat of Iraq’s government. Qassim Abdul-zahra And Bassem Mroue,, "Baghdad seeks expulsion of US troops over killing of Iran general," 5 Jan. 2020 The blast occurred during rush hour as Somalia returned to work after its weekend. Arkansas Online, "Truck bomb in Somali capital kills at least 78 at rush hour," 29 Dec. 2019 Mohamed Hussein said the blast targeted a tax collection center during the morning rush hour as Somalia returned to work after its weekend. Fox News, "Somalia truck bomb kills at least 61 people, official says," 28 Dec. 2019 The volcanic island, which resides in the Bay of Plenty off the country’s North Island, is a popular tourist destination; several dozen people were on and around it when the blast occurred. Andrea Thompson, Scientific American, "New Zealand Eruption: The Inherent Risk in Visiting Volcanoes," 10 Dec. 2019 The blast was a once-in-a-lifetime opportunity to do some amazing science—the Super Bowl of volcanoes. Wired, "With Shovels and Drones, Volcano Hunters Probe Kilauea," 5 Dec. 2019 Recent Examples on the Web: Verb Geothermal could be the answer Bloomberg China wants activists to stay out of its war on pollution Wall Street Journal PG&E strikes deal with bondholders as governor blasts bankruptcy strategy Calendar THURSDAY | JAN. Josh Siegel, Washington Examiner, "Daily on Energy: Wind and solar industries plan on taking market share regardless of federal policy," 23 Jan. 2020 Last month, Trump attacked his Democratic rivals, blasted Congress over impeachment proceedings, and even mocked teenage climate activist Greta Thunberg from his @realDonaldTrump Twitter account. Kurt Wagner, Fortune, "Meet Twitter’s top lawyer, who has the final word on blocking tweets—including Donald Trump’s," 15 Jan. 2020 Taal Volcano in the Philippines has been erupting for three days, blasting steam, ash and debris into the sky. Amy Gunia, Time, "Taal Volcano in the Philippines Has a History of Deadly Eruptions. Here's What Could Happen Next," 14 Jan. 2020 School and university students took part in some of the protests and hundreds marched down main highways, raising Lebanese flags and blasting rallying songs through loudspeakers. Washington Post, "Lebanese protesters block roads against government inaction," 14 Jan. 2020 Taal suddenly rumbled back to life on Sunday, blasting steam, ash and pebbles up to 6 to 9 miles into the sky, according to the Philippine Institute of Volcanology and Seismology. Joeal Calupitan, Anchorage Daily News, "Lava gushes from volcano near Manila as thousands of Filipinos flee," 13 Jan. 2020 Establishing food trucks or blasting music from speakers in the parking lot are ways of doing this. Madeline Mitchell,, "Expert says country-wide mall brawls happen all over the world, just now hitting the U.S.," 31 Dec. 2019 When roasting, blasting high heat for a short amount of time usually does the trick—try 500 degrees for 10 minutes to start but don’t stray too far from your oven in the meantime. Lizzie Noonan, Bon Appétit, "How to Make Even the Most Stubborn Winter Vegetables Taste Like Luxury," 16 Dec. 2019 Hundreds of thousands of fans blast cold air to keep the machines from overheating, aided by six giant ceiling turbines that spin with the collective force of 360 washing machines. Wired, "Inside the Icelandic Facility Where Bitcoin Is Mined," 3 Nov. 2019

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

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First Known Use of blast


before the 12th century, in the meaning defined at sense 1a


14th century, in the meaning defined at intransitive sense 1

History and Etymology for blast


Middle English, from Old English blǣst; akin to Old High German blāst blast, blāsan to blow, Old English blāwan — more at blow


Middle English blasten, derivative of blast blast entry 1

Combining form

combining form from Greek blastós "shoot, bud, embryo, germ" — more at -blast

Noun combining form

combining form from Greek blastós "shoot, bud, embryo, germ," noun derivative from the base of blastánein "to bud, sprout, grow," of obscure origin

Note: The supposed base *melōdh- "protuberance, head" in Julius Pokorny, Indogermanisches etymologisches Wörterbuch (citing, in addition to blastós, Sanskrit mūrdhan- "head," Greek blōthrós "tall," Old English molda "top of the head") is improbable as an Indo-European root;a substratal origin is possible, but the semantic links are weak.

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Time Traveler for blast

Time Traveler

The first known use of blast was before the 12th century

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Statistics for blast

Last Updated

27 Jan 2020

Cite this Entry

“Blast.” The Dictionary, Merriam-Webster Inc., Accessed 28 January 2020.

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More Definitions for blast


How to pronounce -blast (audio)

English Language Learners Definition of blast

 (Entry 1 of 2)

: a mass of air that moves very quickly and forcefully
: a mass of water, gas, heat, etc., that moves very quickly and forcefully through the air
: the loud sound made by a horn or a whistle



English Language Learners Definition of blast (Entry 2 of 2)

: to destroy, break apart, or remove (something) with an explosive
: to create (a space or opening) with explosives
: to strongly criticize (someone or something) especially in public


\ ˈblast How to pronounce blast (audio) \

Kids Definition of blast

 (Entry 1 of 2)

1 : the sound made by a wind instrument the blast of a whistle
3 : a strong gust of wind icy blasts of winter
4 : a stream of air or gas forced through an opening
5 : a very enjoyable experience The party was a blast.


blasted; blasting

Kids Definition of blast (Entry 2 of 2)

1 : to break to pieces by an explosion : shatter blast rock
2 : to hit with great force He blasted a home run.
4 : to hit (someone or something) with something (as air or water) that is moving forcefully She blasted us with water from the hose.
5 : to make a loud unpleasant sound a television blasting
6 : to strongly criticize He was blasted for the mistake.
blast off
: to take off The rocket blasted off.


\ ˈblast How to pronounce blast (audio) \

Medical Definition of blast

 (Entry 1 of 2)

1 : an explosion or violent detonation
2 : the violent effect produced in the vicinity of an explosion that consists of a wave of increased atmospheric pressure followed by a wave of decreased atmospheric pressure

Other Words from blast

blast verb



Medical Definition of blast (Entry 2 of 2)

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More from Merriam-Webster on blast

Thesaurus: All synonyms and antonyms for blast

Rhyming Dictionary: Words that rhyme with blast

Spanish Central: Translation of blast

Nglish: Translation of blast for Spanish Speakers

Britannica English: Translation of blast for Arabic Speakers Encyclopedia article about blast

Comments on blast

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


showing steady, earnest care and effort

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