- the action of a state in violating by force the rights of another state, particularly its territorial rights; an unprovoked offensive, attack, invasion, or the like: The army is prepared to stop any foreign aggression.
- any offensive action, attack, or procedure; an inroad or encroachment: an aggression upon one's rights.
- the practice of making assaults or attacks; offensive action in general.
- overt or suppressed hostility, either innate or resulting from continued frustration and directed outward or against oneself.
- an attack or harmful action, esp an unprovoked attack by one country against another
- any offensive activity, practice, etc
- a hostile or destructive mental attitude or behaviour
