Plain English Meaning

Help that tells the pilot which way to fly to stay on the right path.

Full Definition

Instructions or information provided to a pilot — typically by ATC, ground-based navigation aids, or onboard equipment — that direct the aircraft along a desired course, track, or path during flight.

Context Anchor

Seen in radar approach procedures, where a controller talks the pilot toward the runway using radar-based position information.

Derivation

From 'navigation' (Latin navigare, 'to sail or steer a ship') and 'guidance' (Old French guider, 'to '). Together: information that leads the aircraft along its path.