noun, verb ·Rare ·Advanced level

Definitions

Noun

1. 1
   A recognizable natural or man-made feature used for aerial navigation.

Verb

1. 1
   To mark airport names or identifiers so that they can be seen from the sky, to aid pilots in navigation.

Etymology

From air + mark, modelled on landmark.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.