Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “aegis”


noun     /ˈiː.dʒɪs/ formal
under the aegis of sb/sth with the protection or support of someone or something, especially an organization : The project was set up under the aegis of the university .Protection and protectorsEnvironmental issues
(Definition of aegis noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of aegis

Browse related topics

You are looking at an entry to do with Protection and protectors, but you might be interested in these topics from the Protecting and saving topic area:

Word of the Day


relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More