English

Definition of aegis noun from the Oxford Advanced Learner's Dictionary

 

aegis

 noun
noun
BrE BrE//ˈiːdʒɪs//
 
; NAmE NAmE//ˈiːdʒɪs//
 
 
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Word Origin early 17th cent. (denoting armour or a shield, especially that of a god): via Latin from Greek aigis ‘shield of Zeus’. Zeus was the supreme god in Greek mythology.Idioms
under the aegis of somebody/something
 
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(formal) with the protection or support of a particular organization or person Medical supplies are being sent under the aegis of the Red Cross.
See the Oxford Advanced American Dictionary entry: aegis