See also: ead, éad, -éad, and 'ead English Noun EAD (plural EADs) (aviation) Initialism of emergency airworthiness directive. Hypernyms: airworthiness directive, AD (underwater diving) Initialism of equivalent air depth. (US) Initialism of employment authorization document. Anagrams Eda, Ade, DAE, DEA, ADE, EDA, AED, -ade, ade Portuguese Noun EAD m (invariable) (education) initialism of educação a distânciaWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads