- the action of an aircraft in becoming airborne or of a rocket in rising from its launching site under its own power.
- the instant when such action occurs.
Origin of liftoff
Words nearby liftoff
How to use liftoff in a sentence
He personally designed part of the training program, which in part called for flying each crew member in his Soviet MiG-29, exposing them to the kinds of g-forces they’ll experience during liftoff and re-entry.Four Civilian Astronauts. Three Days in Orbit. One Giant Leap. Meet the Inspiration4 Crew|Jeffrey Kluger|August 10, 2021|Time
Chips got faster, cheaper and more efficient, eventually achieving a kind of social liftoff—powering computers that fit in a pocket.
Aftermath of the liftoff of the SpaceX Crew-2 mission taking four astronauts to the International Space Station for NASA.NASA gets what it wanted: Independent, reliable access to space|Eric Berger|April 23, 2021|Ars Technica
The liftoff should be thunderous—rattling windows and shaking loose plaster in nearby buildings as the Saturn V once did—and the lunar journeys should be wondrous.Watch TIME's Exclusive Footage of NASA's Most Powerful Rocket Ever Under Construction|Jeffrey Kluger|April 22, 2021|Time
Such an early-afternoon liftoff would give the craft’s solar panel enough time to charge up its batteries for the flight.Ingenuity helicopter makes history by flying on Mars|Lisa Grossman|April 20, 2021|Science News For Students
She watched the liftoff from a boat floating down the Banana River near the launch site in Florida.Moon Men: The Private Lives of Neil Armstrong and Pals in “Togethersville”|Lily Koppel|September 1, 2012|DAILY BEAST
Every joke was tweaked and reworked multiple times to achieve maximum comic liftoff.Could Judd Apatow and Kristen Wiig’s ‘Bridesmaids’ Nab an Oscar?|Chris Lee|December 13, 2011|DAILY BEAST
They tell Sandra McElwaine about their orbital road trip ahead of Scott's liftoff this week.
British Dictionary definitions for liftoff
Other Idioms and Phrases with liftoff
Begin flight, as in The spacecraft was due to lift off at ten o'clock. The off in this idiom means “off the ground.” [Late 1800s]