1. The initial ascent of a rocket from its launching pad
   "The crowd cheered as they watched the liftoff of the space shuttle"

1. Depart from the ground
   "The plane lifted off two hours late";
   - take off

Derived forms: lifted off, lifts off, liftoffs, lifting off

Type of: ascension, ascent, depart, part, rise, rising, set forth, set off, set out, start, start out, take off

Encyclopedia: Liftoff