\ 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 email) 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 noun a 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

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. See More
Recent Examples on the Web: Noun Many people, terrified of another blast, steered clear of the mosque altogether. New York Times, 8 May 2022 The site of the blast was the Abaezi forest in a border community between Imo and Rivers, two states in the country’s southeastern region. Alexander Onukwue, Quartz, 25 Apr. 2022 With Russia threatening to step up strikes on Kyiv, Mayor Vitali Klitschko reported that rescuers and medics were dispatched to the site of a blast on the eastern edge of the capital. Los Angeles Times, 16 Apr. 2022 In a hospital room down the hall, Mikhail Kluch told me that a group of people standing near a fence outside the shop suffered the worst of the blast. Joshua Yaffa, The New Yorker, 15 Apr. 2022 His hands got the brunt of the blast and the flying shrapnel. Washington Post, 15 Apr. 2022 Kyle Jennings, the only survivor of the blast, has been on the run since then. Sara Netzley,, 29 Mar. 2022 Her son-in-law was tying his shoe and was knocked over from the force of the blast. Loveday Morris And Anastacia Galouchka, Anchorage Daily News, 26 Mar. 2022 Case in point, images from the theater bombing in Mariupol were available within minutes of the blast. Brian Stelter, CNN, 17 Mar. 2022 Recent Examples on the Web: Verb Another, called Boombox, let drivers blast music or other audio out of their cars while in motion, a possible danger for pedestrians, including blind people. David Ingram, NBC News, 9 Apr. 2022 And then there are apps like Play for Ukraine, an online puzzle game that, in the background, uses the player’s Internet connection to blast thousands of online requests at Russian websites in hopes of helping take them down. Washington Post, 16 Mar. 2022 In most incidents analyzed by the nonprofit, hackers blast out phishing emails to countless potential targets in the hope of landing a victim, Mr. Taylor said. David Uberti, WSJ, 5 Feb. 2022 Imagine if, in the ’90s, every time a kid demanded their parents blast the Lion King CD in the car on the way to school, it was recorded in chart data. Spencer Kornhaber, The Atlantic, 3 Feb. 2022 Over the past few years, the company has upgraded more than 400 snow guns across its resorts to blast more snow with less energy in less time. Thomas Peipert, ajc, 25 Jan. 2022 Over the past few years, the company has upgraded more than 400 snow guns across its resorts to blast more snow with less energy in less time. Thomas Peipert, The Christian Science Monitor, 25 Jan. 2022 Its clients include advertising company WPP, which has used the technology to blast out internal corporate messaging in different languages without the need for multiple video shoots. Tom Simonite, Wired, 16 Aug. 2021 If tackling the entire house feels like too big of an undertaking at the moment, start smaller, like with a handheld steam cleaner, one designed to blast away all the dirt and grime with just the press of a button. Amy Schulman,, 5 Mar. 2022 See More

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.

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

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Last Updated

17 May 2022

Cite this Entry

“Blast.” Dictionary, Merriam-Webster, Accessed 18 May. 2022.

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More Definitions for blast


\ 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)

More from Merriam-Webster on blast

Nglish: Translation of blast for Spanish Speakers

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


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