Definition of "avenge"
noun:
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A vengeance; a revenge.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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verb:
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To take vengeance (for); to exact satisfaction for by punishing the injuring party; to vindicate by inflicting pain or evil on a wrongdoer.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
To treat revengefully; to wreak vengeance on.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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