\ 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 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

Keep scrolling for more

Other Words from blast


blaster noun

Examples of blast in a Sentence


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.


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

The homer, a night after his solo blast in the eighth inning was the deciding hit in a 3-2 victory, was Renfroe’s career-high 27th of the season. San Diego Union-Tribune, "Homers by Renfroe, Margot lift Padres past Dodgers in Paddack’s revenge," 7 July 2019 His blast struck the promotional Toyota RAV4 located beyond the right-center field fence, the first time the car had been struck in six years at the park. Jr Radcliffe, Milwaukee Journal Sentinel, "A retired math teacher from Burlington, Mark Gruber, walks away with a RAV4 after a well-placed Mike Moustakas home run Sunday," 10 June 2019 His sixth blast of the season immediately followed homers by Tommy La Stella and Mike Trout, marking the first time in three seasons the Angels launched back-to-back-to-back home runs. Dylan Hernandez,, "Shohei Ohtani and Yusei Kikuchi go from scrubbing toilets to living major league dream," 8 June 2019 Meadows led off the game with a homer to right, then opened the third with his upper-deck blast. Ian Harrison, The Seattle Times, "Cheap seats: Meadows, Lowe go way deep as Rays beat Jays," 12 Apr. 2019 The film depicted what would happen if the volcano erupted again with a magnitude as large as its blast some 2.1 million years ago, which produced roughly 588 cubic miles of material. National Geographic, "How dangerous are supervolcanoes? Get the facts.," 19 Mar. 2019 Fernando stepped down four days after the blasts, after Sirisena asked for his resignation and that of police chief Pujith Jayasundara, who refused to resign. Washington Post, "Probe advised of ex-defense secretary over Sri Lankan blasts," 25 June 2019 Walker’s first-inning blast, which was his third homer in six career plate appearances vs. Kershaw, was followed up in the second inning by a solo home run for Zack Greinke, which was his third of the season. Richard Morin, azcentral, "Diamondbacks bend but don't break to sting Dodgers in series opener," 25 June 2019 Two short blasts, repeated once, mean play has resumed. Greg Levinsky, Detroit Free Press, "Rocket Mortgage Classic weather: Hot temps; best chance for rain is Saturday," 24 June 2019

Recent Examples on the Web: Verb

The skeletons of more than 50 boys were unearthed, rib cages blasted by buckshot. Parul Sehgal, New York Times, "In ‘The Nickel Boys,’ Colson Whitehead Continues to Make a Classic American Genre His Own," 11 July 2019 The president shrugged off a question about Border Patrol agents posting derogatory and sexist messages about lawmakers in a secret Facebook group, and defended the comments that have been blasted by Border Patrol and Homeland Security leadership. NBC News, "'A lot of people are going to be joining': Trump says July Fourth event boosts military recruiting," 5 July 2019 Shirts are sheerer and shorts are shorter, palettes are less strict, and the hard and fast rules of tailoring have been blasted apart. Vogue, "The Most Exciting New Menswear Designers Are… Young Women," 27 June 2019 Ortiz, who sat at a table in Santo Domingo’s Dial Discotheque with a friend, Sixto David Fernandez, was blasted at point blank range by a 25-year-old man named Rolfy Ferreyra Cruz. Michael Mccann,, "David Ortiz Shooting Draws More Questions in Alleged Case Of Mistaken Identity," 19 June 2019 After that announcement, which was also blasted out in an email, hundreds of students—about 25 percent, according to Chillo—decided to not even come back to campus for the spring semester. Alia Wong, The Atlantic, "The End of an American College," 18 June 2019 Fox, reportedly the president’s favorite news source, has been blasted for its alleged evolution into a megaphone for the Trump administration. Renae Reints, Fortune, "The Politics of Twitter: Who 2020 Candidates Tweet About Most," 5 June 2019 As the story goes, Mercury suffered a stupendous collision near the end of the period of planetary accretion, struck by a planetesimal so big that much of its crust was blasted into space. Kim Stanley Robinson, National Geographic, "Dear MESSENGER: How unmasking Mercury brought art to life," 22 Mar. 2019 Indian Lake is less than 1.5 miles southeast of the impact crater—not 6 miles—easily within range of debris blasted skyward by the heat of the explosion from the crash. Popular Mechanics Editors, Popular Mechanics, "Debunking Myths About United Flight 93," 10 Sep. 2018

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.

See More

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.

Keep scrolling for more

Learn More about blast

Statistics for blast

Last Updated

14 Jul 2019

Look-up Popularity

Time Traveler for blast

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

See more words from the same century

Keep scrolling for more

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)

Keep scrolling for more

More from Merriam-Webster on blast

Rhyming Dictionary: Words that rhyme with blast

Thesaurus: All synonyms and antonyms for 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).


appealing forcibly to the mind or reason

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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