Wiktionary
aod
init. Above Ordnance Datum. Used to specify heights above mean sea level on General Arrangement and other technical drawings. Usually specified in metres, eg +62.0m.
Usage examples of "aod".
In the light of one of the lanterns the four of them sat about on deck chairs cracking walnuts aod sipping the sherry which was very good--made across the sea in the sunny Oceanic Isles.