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.
The first stage of the Falcon 9 rocket returned to Earth just over 8 minutes after liftoff to land on the SpaceX drone ship A Shortfall Of Gravitas in the Atlantic Ocean. Tariq Malik, Space.com, 29 Dec. 2024 The May 6 attempt was scrubbed two hours before liftoff because of valve on ULA’s upper Centaur stage that teams continue to investigate. Richard Tribou, Orlando Sentinel, 29 Dec. 2024 Another experiment that the Polaris Dawn crew underwent to understand in-space ailments involved a series of MRI scans just before liftoff and immediately after returning to Earth. Jackie Wattles, CNN, 25 Oct. 2024 The Starlink 6-76 mission is scheduled for liftoff tonight from NASA's Kennedy Space Center at 10:35 p.m. EST (0335 UTC, November 26), following a day already filled with Falcon 9 rocket milestones. Tom Rogers, Newsweek, 25 Nov. 2024 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

Dictionary Entries Near liftoff

Cite this Entry

“Liftoff.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/liftoff. Accessed 2 Jan. 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!