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Acronymfinder

What does AO stand for?

AO stands for Air Observer


This definition appears very rarely and is found in the following Acronym Finder categories:

  • Military and Government

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Other Resources:
We have 60 other definitions for AO in our Acronym Attic

Samples in periodicals archive:

Eighty years after, at a hangar in Al Mahatta Museum, visitors find such aircraft as the 1937 AVRO Anson IG AKVW-UK from the Royal Air Force (RAF) used for the RAF Flying Training School and then the Air Observer Navigation School.