waypoint
WAY-point
/ˈweɪpɔɪnt/
A predetermined geographical position defined by coordinates, used for air or maritime navigation.
Modern waypoints are often named with five-letter pronounceable codes (e.g., 'KABEE') programmed into flight management computers.
The story behind the word. A compound of 'way' (path) and 'point' (spot), emerging in maritime navigation before becoming central to satellite-based aviation (GPS) in the late 20th century.
Word relationships
- checkpoint: A checkpoint usually involves physical inspection or ground presence, whereas a waypoint is a virtual navigational coordinate.
Commonly confused with
- heading: A waypoint is a fixed destination coordinate; a heading is the current direction your nose is pointing.
Collocations
- next waypoint
- waypoint coordinates
- fly direct to waypoint
- waypoint sequence
Example sentences
- "The navigation computer calculated the fuel burn required to reach the next waypoint." Flight planning
- "Proceed direct to waypoint ALPHA and hold until further advised." Air traffic control routing
Memory hook
A POINT on your WAY across the sky. Virtual GPS coordinate checkpoint.
When not to use
Not typically used for informal roadside stops on a car road trip (use 'stopover' or 'checkpoint').
Fun facts
- Air traffic authorities often use humorous waypoint names, such as 'ITAWT', 'ITAWA', 'PUDYE', 'TTATT' near Portsmouth, New Hampshire!
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