The act of breaking off a relationship completely; a permanent rupture or severance of friendship or ties.
二人は長年の争いの末に絶交した。
After years of conflict, the two severed their friendship.
彼は友人に裏切られたと感じ、絶交を宣言した。
Feeling betrayed by his friend, he declared a breakup of their friendship.
絶交は取り返しがつかない場合が多いから、慎重に行動したほうがいい。
Breaking off a relationship is often irreversible, so it's better to act carefully.