- 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
How to use liftoff in a sentence
For every nanosecond that I miraculously lift off the ground, I land with an inordinately loud thud.How Taryn Toomey’s ‘The Class’ Became New York’s Latest Fitness Craze|Lizzie Crocker|January 9, 2015|DAILY BEAST
Although the blood-spattered offices will be off-limits, staff have vowed to continue producing the magazine.
A passing off-duty school safety officer named Fred Lucas said that he had been told the man was a drug dealer.
Specifically, the pilots got themselves into a high altitude stall, where the wings lose the capacity to provide lift.Flight 8501 Poses Question: Are Modern Jets Too Automated to Fly?|Clive Irving|January 4, 2015|DAILY BEAST
The NOPD fired Knight in 1973 for stealing lumber from a construction site as an off-duty cop.
The hopes of a man that is void of understanding are vain and deceitful: and dreams lift up fools.
A far-off volley rumbled over the plain, and a few birds stirred uneasily among the trees.The Red Year|Louis Tracy
Lift up thy hand over the strange nations, that they may see thy power.
Though, as everybody well knew, the doctor had forbidden her to lift so much as a pin!The Awakening and Selected Short Stories|Kate Chopin
He rose upon it, it was under him, he felt its lift and irresistible momentum; almost it bore him up the steps.The Wave|Algernon Blackwood
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]