airmark

transitive verb
air·mark | \ˈer-ˌmärk\

Definition of airmark 

: to mark out (something, such as a town) with ground location signs visible from the air as an aid to aerial navigation

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Other Words from airmark

airmarker \ˈer-ˌmär-kər \ noun

First Known Use of airmark

1927, in the meaning defined above

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The first known use of airmark was in 1927

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