Definition
A point in space defined by the crossing of two navigation courses, typically the radials of two VORs, a VOR radial and a DME distance, or two airway centerlines. Intersections are named with five-letter pronounceable identifiers (for example, BOACH, DRAKO) and are used as fixes for navigation, route definition, holding, and reporting.
Plain English
A named point in the sky created where two navigation lines cross. Pilots use it as a landmark even though there is nothing physical there.
Context Anchor
Seen in FAA abbreviations, airport notices, airport diagrams, taxi instructions, and navigation chart discussions.
Derivation
From Latin 'intersecare', meaning 'to cut between'. Two navigation courses cut across each other, and the point where they meet is the intersection. The everyday meaning of two roads crossing carries over directly — except here the 'roads' are invisible navigation signals.
Why Pilots Care
Intersections act as navigation fixes for position reporting and route following.
Intuition Check
Intersection does not only mean a street-style road crossing. In aviation, it can also mean a precise charted navigation point or a specific crossing on airport pavement.
Example Sentence 1
ATC cleared the flight direct to the BOACH intersection and then to join the airway eastbound.
Example Sentence 2
Hold short of the INT with taxiway A after landing.