from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Chiefly British Slang Aggressive or violent behavior.
- n. Chiefly British Slang Irritation or exasperation: "Postponing new hospitals and roads causes far less aggro than sacking town hall or Whitehall workers” ( Economist).
- adj. Slang Aggressive or violent.
- adj. Slang Daring and skillful, especially in a sport such as surfing.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Aggravation; bother.
- n. Aggressive behavior; loud, intimidating behavior that convincingly threatens violence without necessarily actually becoming violent.
- n. A measure of how belligerent a player is – a high value may inspire either avoidance or preemptive hostile action from enemies.
- n. Hostile attention from an enemy gained by acting belligerently.
- adj. Angry.
- adj. Liable to attack without being attacked first (said of monsters).
- adj. Hardcore, aggressive.
- v. To become aggressive towards the player's character.
from the GNU version of the Collaborative International Dictionary of English
- n. aggravation or aggression.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (informal British usage) aggravation or aggression
Short for aggravation and aggression.(American Heritage® Dictionary of the English Language, Fourth Edition)
From aggravation + -o (“diminutive suffix”), influenced by aggressive. (Wiktionary)