Definition of avenge verb from the Oxford Advanced Learner's Dictionary

 

avenge

 verb
verb
BrE BrE//əˈvendʒ//
 
; NAmE NAmE//əˈvendʒ//
 
(formal)Verb Forms present simple I / you / we / they avenge
BrE BrE//əˈvendʒ//
 
; NAmE NAmE//əˈvendʒ//
 
he / she / it avenges
BrE BrE//əˈvendʒɪz//
 
; NAmE NAmE//əˈvendʒɪz//
 
past simple avenged
BrE BrE//əˈvendʒd//
 
; NAmE NAmE//əˈvendʒd//
 
past participle avenged
BrE BrE//əˈvendʒd//
 
; NAmE NAmE//əˈvendʒd//
 
-ing form avenging
BrE BrE//əˈvendʒɪŋ//
 
; NAmE NAmE//əˈvendʒɪŋ//
 
 
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to punish or hurt somebody in return for something bad or wrong that they have done to you, your family or friends avenge something He promised to avenge his father's murder. In time, perhaps, these deaths will be avenged. They were out to avenge last season’s defeat. avenge yourself on somebody She was determined to avenge herself on the man who had betrayed her. Grammar Pointavenge / revengeAvenge is a verb; revenge is (usually) a noun. People avenge something or avenge themselves on somebody:She vowed to avenge her brother’s death. He later avenged himself on his wife’s killers. You take revenge on a person. In more formal or literary English, revenge can also be a verb. People revenge themselves on somebody or are revenged on them (with the same meaning):He was later revenged on his wife’s killers. You cannot revenge something:She vowed to revenge her brother’s death. Word Origin late Middle English: from Old French avengier, from a- (from Latin ad ‘to’) + vengier, from Latin vindicare ‘vindicate’.
See the Oxford Advanced American Dictionary entry: avenge