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.
If all goes to plan, the 29 Starlink spacecraft will be deployed into LEO about 65 minutes after liftoff. Mike Wall, Space.com, 15 Nov. 2025 During that January mission, the company failed to recover New Glenn’s first-stage booster, which is the bottommost portion of the rocket that gives the vehicle its initial burst of power at liftoff. Jackie Wattles, CNN Money, 13 Nov. 2025 The rocket is built to be reusable, with the first stage – or booster that provides the initial burst of thrust at liftoff – designed to last for at least 25 flights, according to Blue Origin. Eric Lagatta, USA Today, 12 Nov. 2025 Leadling lights of the scene like Jane Remover, Frost Children and underscores — the latter of whom has its own dope new release today — help Brown achieve liftoff here, as the rapper sounds perfectly at home within his glitchier (and at times house-ier) new sonic environs. Andrew Unterberger, Billboard, 7 Nov. 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 22 Nov. 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!