blast·​off | \ ˈblast-ˌȯf How to pronounce blastoff (audio) \

Definition of blastoff

 (Entry 1 of 2)

: a blasting off (as of a rocket)

blast off

blasted off; blasting off; blasts off

Definition of blast off (Entry 2 of 2)

intransitive verb

: take off sense 1b used especially of rocket-propelled missiles and vehicles

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Synonyms & Antonyms for blastoff

Synonyms: Noun

launch, liftoff, takeoff

Antonyms: Noun


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Examples of blastoff in a Sentence


the mission was scrubbed just minutes before blastoff

Recent Examples on the Web: Noun

Mission Control is seen during the Apollo 8 blastoff Dec. 21, 1968. Joel Achenbach, Washington Post, "How did NASA put men on the moon? One harrowing step at a time.," 19 June 2019 After a 24-hour delay because of a technical problem, a Russian Soyuz rocket made a successful blastoff from the nation's brand-new Vostochny Cosmodrome. Anatoly Zak, Popular Mechanics, "Why Putin Wouldn't Let You Watch Russia's Latest Space Launch," 28 Apr. 2016 Kidd Jordan and the Improvisational Arts Quartet in the Jazz Tent at 1:25 -- Five, four, three, two, one, blastoff. Doug Maccash,, "Sunday's Jazz Fest picks: Buffett, Byrne or Benson?," 28 Apr. 2018 TransHab is a three-level habitat, accommodating six people, that can be squeezed into a cylinder for blastoff and inflated in space. James R. Hagerty, WSJ, "Constance Adams Helped Design Habitations for Mars-Bound Astronauts," 6 July 2018 Corrections & Amplifications The Falcon Heavy rocket had its maiden blastoff in February. Andy Pasztor, WSJ, "Elon Musk’s SpaceX Delays Plans for First Space Tourists to Circle Moon," 4 June 2018 Early speculation centered on an explosion caused by a structural defect or the possibility that crucial, heat-protecting tiles on the shuttle's left wing were damaged when they were struck by a piece of fuel-tank insulation during blastoff. Martin Merzer And Phil Long, miamiherald, "Columbia space shuttle blew up 15 years ago | Miami Herald," 31 Jan. 2018 Counting his takeoff from the moon in 1972 as commander of Apollo 16, Young’s blastoff tally stood at seven, for decades a world record. Marco Santana,, "John Young, astronaut who grew up in Orlando, dies at 87," 7 Jan. 2018 Counting his takeoff from the moon in 1972 as commander of Apollo 16, his blastoff tally stood at seven, for decades a world record. Sophie Weiner, Popular Mechanics, "Legendary Apollo Astronaut John Young Has Died," 6 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'blastoff.' 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 blastoff


1939, in the meaning defined above


1950, in the meaning defined above

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Statistics for blastoff

Last Updated

28 Jun 2019

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Time Traveler for blastoff

The first known use of blastoff was in 1939

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More Definitions for blastoff



English Language Learners Definition of blastoff

: the time when a rocket, missile, etc., begins to rise into the air


blast·​off | \ ˈblast-ˌȯf\

Kids Definition of blastoff

: an instance of taking off (as of a rocket)

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Rhyming Dictionary: Words that rhyme with blastoff

Thesaurus: All synonyms and antonyms for blastoff

Comments on blastoff

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to form ideas or theories about something

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