noun, noun or participle which takes 'suru', intransitive verb
confrontation; showdown; face-off
A direct, often decisive confrontation between two opposing parties, whether in politics, sports, legal contexts, or personal disputes. Can be used as a noun or with する to mean 'to have a showdown'.
両候補はテレビ討論会で対決した。
The two candidates faced off in a televised debate.
裁判で検察側と弁護側が対決する。
The prosecution and the defense confront each other in court.