UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/əˈgrɛʃən/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/əˈgrɛʃən/ ,USA pronunciation: respelling(ə greshən)

WordReference Random House Learner's Dictionary of American English © 2020
ag•gres•sion /əˈgrɛʃən/USA pronunciation   n. [uncountable]
  1. the action of making unprovoked assaults or attacks against another, esp. so as to dominate.
  2. Psychologyhostility toward or attack upon another, whether in words or in gestures or other acts:The panhandler's aggression frightened the passersby.
ag•gres•sor /əˈgrɛsɚ/USA pronunciation  n. [countable]See -gress-.

WordReference Random House Unabridged Dictionary of American English © 2020
ag•gres•sion  (ə greshən),USA pronunciation n. 
  1. 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.
  2. any offensive action, attack, or procedure;
    an inroad or encroachment:an aggression upon one's rights.
  3. the practice of making assaults or attacks;
    offensive action in general.
  4. Psychiatryovert or suppressed hostility, either innate or resulting from continued frustration and directed outward or against oneself.
  • Latin aggressiōn- (stem of aggressiō), equivalent. to aggress(us) (see aggress) + -iōn- -ion
  • 1605–15
    • 1.See corresponding entry in Unabridged peacefulness.

Collins Concise English Dictionary © HarperCollins Publishers::
aggression /əˈɡrɛʃən/ n
  1. an attack or harmful action, esp an unprovoked attack by one country against another
  2. any offensive activity, practice, etc
  3. a hostile or destructive mental attitude or behaviour
Etymology: 17th Century: from Latin aggression-, from aggrēdi to attack

aggressor /əˈɡrɛsə/ n
'aggression' also found in these entries:

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