Synonyms of aegis

aegis

noun

ˈē-jəs 

variants also egis

1

as in defense

means or method of defending

having no claim to the land under the aegis of the law, the cattle baron decided to claim it by force

Synonyms & Similar Words

• defense
• protection
• shield
• ammunition
• safeguard
• wall
• weapon
• armor
• security
• screen
• ward
• guard
• armament
• buckler
• cover
• arm
• munitions
• weaponry
• fortress
• stronghold
• fort
• palisade
• fastness

Antonyms & Near Antonyms

• attack
• assault
• aggression
• offense
• offensive

2

as in sponsorship

the financial support and general guidance for an undertaking

a medical study that was questioned by many because it was done under the aegis of a major pharmaceutical company

Synonyms & Similar Words

• sponsorship
• patronage
• auspice
• funding
• backing
• subsidy
• assistance
• endowment
• financing
• encouragement
• bankrolling
• fosterage
• aid
• help

Example Sentences

Recent Examples of aegis

But once again, the desire to press ahead with competing agendas under the aegis of homeland security is getting in the way of funding the department charged with protecting that security. — Ron Elving, NPR, 24 May 2026

The year followed the fiftieth anniversary of the institution, which was established under the aegis of the Smithsonian in 1974. — News Desk, Artforum, 13 May 2026

Of the 250 years since the country’s founding, less than a quarter unfolded under the aegis of universal suffrage. — Vann R. Newkirk Ii, The Atlantic, 2 May 2026

In 1949, under the aegis of the United Nations, Israel and Lebanon agreed to an Armistice Demarcation Line based on the 1923 Palestine-Lebanon boundaries set by the French and British colonial powers. — Mireille Rebeiz, The Conversation, 8 Apr. 2026

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