(an airplane) takes off

When an airplane leaves the ground to start flying, it's called "taking off":

I fell asleep in my seat before we even took off.

You can say that the airplane itself "took off", or that the people riding the plane "took off":

What time did you take off?

The noun version of the verb "take off" is "a takeoff":

Our takeoff was delayed by 20 minutes.

This phrase appears in these lessons: