the moment when a rocket or spacecraft leaves the ground and rises into the air, the act of leaving or departing, especially suddenly or dramatically

give someone a lift-off, liftoff weight, liftoff velocity

Formal and Informal Expressions of liftoff

In different contexts, you can replace 'liftoff' with suitable alternatives. In a more formal setting, 'launch, takeoff' is apt. In informal speech or writing, 'blastoff' is a commonplace synonym.

liftoff: Explore its Definition & Usage

liftoff Definition

1the moment when a rocket or spacecraft leaves the ground and rises into the air
2the act of leaving or departing, especially suddenly or dramatically

Using liftoff: Examples

Take a moment to familiarize yourself with how "liftoff" can be used in various situations through the following examples!

Example
The liftoff of the rocket was successful.
Example
The plane's liftoff was delayed due to technical issues.
Example
The sudden liftoff of the bird startled me.
Example
The company experienced a liftoff in sales after the new product launch.

liftoff Synonyms and Antonyms

Synonyms for liftoff

Phrases with liftoff

give someone a lift-off
to help someone get started or launched on a project or endeavor
Example
My mentor gave me a lift-off by introducing me to key people in the industry.
liftoff weight
the total weight of a rocket or spacecraft at the moment of liftoff
Example
The liftoff weight of the spacecraft was over 2,000 pounds.
liftoff velocity
the speed required for a rocket or spacecraft to leave the ground and enter orbit
Example
The liftoff velocity of the rocket was calculated to be 7 miles per second.

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Summary: liftoff in Brief

The term 'liftoff' [ˈlɪftɒf] refers to the moment when a rocket or spacecraft leaves the ground and rises into the air. It also denotes the act of leaving or departing, especially suddenly or dramatically. Examples include 'The liftoff of the rocket was successful,' and 'The sudden liftoff of the bird startled me.' Phrases like 'give someone a lift-off' and 'liftoff weight' extend the concept of 'liftoff' to helping someone get started or calculating the total weight of a spacecraft.