1. To attempt to stop the progression of; to resist or antagonize by physical means, or by arguments, etc.; to contend against; to confront; to resist; to withstand.
    to oppose the king in battle; to oppose a bill in Congress
    There is still time to oppose this plan.
  2. To object to.
    Many religious leaders oppose cloning humans.
  3. To present or set up in opposition; to pose.
    They are opposed to any form of hierarchy.
  4. To place in front of, or over against; to set opposite; to exhibit.
  5. To compete with; to strive against.
    to oppose a rival for a prize

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