Top definition
Ægis, Greek mythology.
The goatskin breastplate or shield of Zeus(King of the gods) or Athena (goddess of wisdom). The shield, Ægis, when carried by Athena has the head of Medusa, retaining its powers of petrification, attached to the center.

The shield offered protection and security - to be under the ægis of someone, or something, is to be under its protection.
In WWII, foreign ministers entered warring territories under the ægis of diplomacy.
by Cap'n Shensisque June 10, 2005
Get the mug
Get a AEGIS mug for your dog Sarah.
The password to build/create faster in Age of Empires 2.

Some don't know that if you type this while playing the computer, they will build/create just as fast. *fizzzzzzzzzzz*
Guy: *Types in AEGIS* HA! >:D
Computer: *Builds faster*
Guy: Nuuu!!!!
by Bonson July 29, 2005
Get the mug
Get a AEGIS mug for your fish Paul.
A class of cruiser used by the United States Navy. It is equipped with a powerful SPY radar system and considerable anit-aircraft capabilities.
The USS Port Royal, an AEGIS-class cruiser, was assigned to the John Stennis' carrier battle group.
by Spock July 13, 2003
Get the mug
Get a AEGIS mug for your brother-in-law Vivek.
A word that is pronounced AYE-JUHS and not EEH-JUHS, no matter what the internet says, because everyone pronounces it the former
I can't believe someone pronounced aegis as "eh-juhs". We have to crucify them
by Bera20X September 25, 2019
Get the mug
Get a Aegis mug for your dad Vivek.
Some big tiddy anime girl with barely any clothing who is also some other big tiddy anime girl with a bit more clothing but still isnt as cool as my nibba alvis or (monado)
by Person who takes memes March 26, 2018
Get the mug
Get a Aegis mug for your boyfriend Callisto.
stands for:

Alien Exterminating Global Intercept System

A secret branch of the global military that hunts down invaders and protects the smiles of tomorrow.
Many associated with the organization are referred to as GateKeepers.
I just got recruited to AEGIS because I'm a gatekeeper.
by Kurei0 August 12, 2009
Get the mug
Get a AEGIS mug for your dad Georges.
A collection of software developed by Korean Game-developing Company Gravity Co., for use in it's MMORPG Ragnarok Online. Aegis is the official software Gravity uses to manage their server.
Hey, now you can host yer own server, just get Aegis!
by ut o_O June 02, 2003
Get the mug
Get a aegis mug for your cat Georges.