Plain English Meaning

Going up. The airplane is moving to a higher altitude than it was a moment ago.

Full Definition

A flight maneuver in which the airplane gains altitude, achieved by increasing power and/or pitch attitude so that the airplane's flight path angles upward relative to the horizon.

Context Anchor

In eights on pylons, a pilot may use a climb to adjust the airplane’s height while maintaining the correct sight picture around the ground reference point.

Derivation

Climb comes from an old English word meaning to go upward, especially by effort. In aviation, the same idea applies: the is moving upward through the and gaining height.