\ 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

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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 The Boston Globe reports the family used 80 pounds of Tannerite in the blast. cleveland, "Explosion during gender reveal rattles homes in New Hampshire, Massachusetts," 23 Apr. 2021 Moscow has dismissed the Czech accusations of its involvement in the blast as absurd and retaliated by expelling 20 Czech diplomats. Fox News, "Putin vows a 'quick and tough' Russian response for its foes," 22 Apr. 2021 Moscow has dismissed the Czech accusations of its involvement in the blast as absurd and retaliated by expelling 20 Czech diplomats. Arkansas Online, "Putin warns of 'quick and tough' Russian response for foes," 21 Apr. 2021 Nineteen children were among the 168 people killed in the blast when McVeigh detonated a massive truck bomb just outside the glass and concrete federal building. Kevin Johnson, USA TODAY, "'Terror is still with us': Attorney General Garland returns for Oklahoma City bombing anniversary," 19 Apr. 2021 No one was injured in the blast, but the 22 businesses in the center suffered various levels of damage. Mckenna Oxenden,, "Mango Grove, Indian restaurant in Columbia destroyed by 2019 explosion, reopens Monday with carryout and delivery," 18 Apr. 2021 It was reported that multiple peripheral buildings were involved in the blast. CBS News, "Massive fireworks explosion kills 2 people and a dog in Southern California," 17 Mar. 2021 The structures that were destroyed in the blast were visible from her balcony, Nalbandian said. Los Angeles Times, "Flying debris, shattered windows, flames: Videos, terrified residents describe deadly Ontario explosion," 17 Mar. 2021 A late season cold blast is expected to hit millions from the Rockies to the East Coast on Tuesday. Max Golembo, ABC News, "Late season cold blast and snow moves East as record lows expected South," 20 Apr. 2021 Recent Examples on the Web: Verb After the spawn, the fish go on a shad feed, and will blast topwaters put anywhere near them—the One-Knocker Spook is among the favorites. Frank Sargeant, al, "Friday fishing report for Alabama," 2 Apr. 2021 Some conservative members of the committee turned to Twitter in recent months to blast YouTube’s decision to ban election fraud content starting in December, after a key deadline for states to certify their election results. Washington Post, "Republicans set to quiz tech CEOs on election misinformation tweeted #StopTheSteal themselves," 24 Mar. 2021 Watching Platoon put me in the mood to blast some napalm into the projection booth. Kyle Smith, National Review, "The Years Have Not Been Kind to Platoon’s Macho Melodrama," 6 Mar. 2021 An early lead for Nadal, followed by Tsitsipas storming back, Nadal fighting off two match points to give himself a chance to survive, before netting a forehand volley and watching Tsitsipas blast a backhand down the line to clinch the match. Matthew Futterman, New York Times, "Rafael Nadal Is Out of the Australian Open," 17 Feb. 2021 But progressive Democrats were quick to denounce the letter and blast the data presented by the lawmakers as flawed. Dallas News, "Pushback on Joe Biden’s oil, gas lease moratorium signals clash inside Democratic Party," 1 Feb. 2021 With the proliferation of small-satellite manufacturers across the U.S. and other regions, specialized launch providers are rushing to fill the demand to blast their products into space. Andy Pasztor, WSJ, "Richard Branson’s Virgin Orbit Reaches Space With Unconventional Rocket-Launch System," 18 Jan. 2021 Republicans have seized on the increase to blast the Biden administration for not doing more to stem the migration. Ben Gittleson, ABC News, "Roberta Jacobson, senior Biden official overseeing border, stepping down at end of month," 9 Apr. 2021 To address the obvious: Yes, Godzilla can blast atomic breath. Washington Post, "‘Godzilla vs. Kong’: Which of our big boys has the power to win?," 31 Mar. 2021

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

5 May 2021

Cite this Entry

“Blast.” Dictionary, Merriam-Webster, Accessed 13 May. 2021.

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More Definitions for blast



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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