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

Antonyms: Noun

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Examples of blastoff in a Sentence

Noun the mission was scrubbed just minutes before blastoff
Recent Examples on the Web: Noun Before Rocket’s blastoff, shares of nonbank mortgage lenders had done little to impress investors in recent months. Orla Mccaffrey, WSJ, "Rocket Is Becoming the New Meme Stock. Move Over, GameStop.," 3 Mar. 2021 That’s an exhilarating blastoff, and even the movie’s clever title card—with its clear nods to blunt exploitation cheapies of the ’70s and ’80s—is a good kick in the pants, a promise of cathartic gratification to come. Stephanie Zacharek, Time, "Promising Young Woman," 15 Jan. 2021 At the SpaceX launch facility in Boca Chica — near the mouth of the Rio Grande — Starship SN8 stands in the coastal breeze, ready to blastoff to roughly 50,000 feet sometime soon. Brandon Lingle,, "FAA approves SpaceX’s Starship launch to 50,000 feet," 3 Dec. 2020 Here the focus is on a single adventurer and the constellation of emotions she and her child experience in the anxious weeks before blastoff. Joe Morgenstern, WSJ, "‘Proxima’ Review: Laws of Emotion," 5 Nov. 2020 Most people watching the blastoff will be doing so virtually, as NASA has urged spectators to do. National Geographic, "See the Full Archive," 26 May 2020 This duet with fellow all-too-knowing West Coast soul man Bobby Womack is a satisfying outlier in Withers’ career, a buddy team blastoff on the Rolling Stones hit. Rj Smith, Los Angeles Times, "Bill Withers’ 10 greatest songs," 3 Apr. 2020 No details were provided, but the company was able to recycle for a second launch try Wednesday and this time around, the countdown ticked smoothly to blastoff. William Harwood, CBS News, "SpaceX Falcon 9 rocket launches 60 more Starlink satellites, but booster landing fails," 18 Mar. 2020 Friday’s blastoff from Cape Canaveral Air Force Station started flawlessly as the Atlas V rocket lifted off with the Starliner just before sunrise. Washington Post, "Boeing capsule launches to wrong orbit, skips space station," 20 Dec. 2019

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


1934, in the meaning defined above


1934, in the meaning defined above

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Time Traveler for blastoff

Time Traveler

The first known use of blastoff was in 1934

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Statistics for blastoff

Last Updated

6 Mar 2021

Cite this Entry

“Blastoff.” Dictionary, Merriam-Webster, Accessed 17 Apr. 2021.

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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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Comments on blastoff

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