defection

/dɪˈfɛkʃən/
noun
  1. The act of leaving a country, political party, or group to join an opposing one.
    • The general's defection weakened the rebel army significantly.
    • The spy's defection to the enemy nation shocked the intelligence community.
    • Several members of the party considered defection after the controversial vote.
  2. The act of abandoning a person, cause, or duty.
    • The defection of key supporters caused the campaign to fail.
    • She felt hurt by her friend's defection during a difficult time.
    • His defection from the project left the team without a leader.
What does "defection" mean? | whatsthatwordmean | whatsthatwordmean