IPA: /rɪˈvɛndʒər/
KK: /rɪˈvɛndʒər/
A person who seeks to get back at someone for a wrong done to them.
The revenger plotted a way to make the offender pay for his actions.
Revenger → It is formed from "re-" (meaning again) and "venger" (from Old French *venger*, meaning to avenge). The word "revenger" refers to someone who seeks to avenge or take revenge again for a wrong done.
Think of someone who is seeking to 'avenge' ('venger') a wrong 'again' ('re-') — that's why a revenger is someone who takes revenge.