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.
How to watch SpaceX Starlink launch livestream As with most SpaceX missions, the launch will be available to stream on the company's website and its new X TV mobile app, beginning about five minutes before liftoff. Eric Lagatta, AZCentral.com, 5 Sep. 2025 Super Heavy alone is powered by 33 of SpaceX’s Raptor engines that give the initial burst of thrust at liftoff. Eric Lagatta, USA Today, 28 Aug. 2025 And in recent days, SpaceX has begun accepting reservations for Mars flights via its website, but without providing fares for round-trips between the planets, or guarantees on the timing of the first liftoff. Kevin Holden Platt, Forbes.com, 28 Aug. 2025 The world's most powerful rocket aced a critical test launch this week, and the images from liftoff are stunning. Josh Dinner, Space.com, 28 Aug. 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

Browse Nearby Words

Cite this Entry

“Liftoff.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/liftoff. Accessed 9 Sep. 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
Love words? Need even more definitions?

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