Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
to avenge
Usage: 1) to avenge, take vengeance, revenge, avenge oneself, be avenged, be punished 1a) (Qal) 1a1) to avenge, take vengeance 1a2) to entertain revengeful feelings 1b) (Niphal) 1b1) to avenge oneself 1b2) to suffer vengeance 1c) (Piel) to avenge 1d) (Hophal) to be avenged, vengeance be taken (for blood) 1e) (Hithpael) to avenge oneself