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Definition of groundprox

groundprox

/ˈɡɹaʊndˌpɹɑːks/
ground · prox
Plural:groundproxes
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groundprox Lexical Profile

groundprox Game Scores & Validity

• noun

1

An informal term for an aircraft's ground proximity warning system (GPWS), or the automated auditory alert it generates to warn pilots of an impending collision with terrain.

Example

"The pilot immediately initiated a steep climb the moment the groundprox blared its automated pull-up warning in the cockpit."

Synonyms
View all synonyms for groundprox

Word Nuance & Usage

Strictly used in aviation parlance and flight simulation communities to describe terrain warning systems; it is highly informal and rarely encountered outside these specific contexts.

• Nearby Words

groundlessly
groundnut
groundout
groundprox
grounds
groundsel
groundsheet

Word Origin & Etymology

An aviation jargon clipping and portmanteau of 'ground proximity,' referring specifically to the Ground Proximity Warning System (GPWS) installed in aircraft.

Cite this Entry

Wordmom. (2026). Definition of Groundprox. In Wordmom Dictionary. Retrieved Nov 6, 2026, from https://wordmom.com/dictionary/groundprox
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