estranger

/ɪˈstreɪndʒər/
noun
  1. A person who causes others to become estranged or alienated.
    • In the story, the villain is an estranger who turns the family against each other.
    • She didn't want to be an estranger, so she tried to mend the broken relationships.
    • The gossip acted as an estranger, driving wedges between old friends.
What does "estranger" mean? | whatsthatwordmean | whatsthatwordmean