Verb
settle the score (third-person singular simple present settles the score, present participle settling the score, simple past and past participle settled the score)
Synonym of even the score
However, Patrick's rift with Victor eventually transforms him into a rather cynical character (much like Victor), and he often responds to him in similarly vindictive ways as a means of trying to settle the score. Source: Internet
The King, angered at what he took to be disrespect from the Duchess to his wife, took the opportunity at what proved to be his final birthday banquet in August 1836 to settle the score. Source: Internet
Whatever the reason, Oxenstierna considered the time was right to finally settle the score with Denmark. Source: Internet