expression, godan verb (-ru)
sever relations; break off ties; cut off contact
Used for deliberately ending a personal relationship, often with a relative, spouse, or close acquaintance. Carries a strong, final connotation.
彼は親と縁を切った。
He severed ties with his parents.
あの人とはもう縁を切ったほうがいい。
You'd better cut off contact with that person.