liftoff

noun

lift·​off ˈlift-ˌȯf How to pronounce liftoff (audio)
: a vertical takeoff by an aircraft or a rocket vehicle or missile

Examples of liftoff in a Sentence

a series of successful liftoffs Thousand of spectators gathered to watch the liftoff of the space shuttle.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
After delaying the launch of these missions three times — they were originally slated to take to the skies on Feb. 27 — the space agency has postponed liftoff once again for SPHEREx and PUNCH. Josh Dinner, Space.com, 4 Mar. 2025 How to watch SpaceX livestream SpaceX will host a livestream of the flight test that will begin about 40 minutes before liftoff. Eric Lagatta, USA TODAY, 3 Mar. 2025 Those are now in hand, clearing the last regulatory hurdle before liftoff. Stephen Clark, Ars Technica, 28 Feb. 2025 Boeing is the prime contractor on the SLS rocket’s core stage, which when combined with solid rocket boosters from Northrop Grumman provide the rocket with 8.8. million pounds of thrust at liftoff, making it for now the most powerful rocket ever to send something into orbit. Richard Tribou, Orlando Sentinel, 10 Feb. 2025 See All Example Sentences for liftoff

Word History

First Known Use

circa 1956, in the meaning defined above

Time Traveler
The first known use of liftoff was circa 1956

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Cite this Entry

“Liftoff.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/liftoff. Accessed 11 Mar. 2025.

Kids Definition

liftoff

noun
lift·​off ˈlif-ˌtȯf How to pronounce liftoff (audio)
: a vertical takeoff (as by a rocket)

More from Merriam-Webster on liftoff

Last Updated: - Updated example sentences
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