Dictionary

To attempt to stop the progression of; to resist or antagonize by physical means, or by arguments, etc.; to contend against.

Example: There is still time to oppose this plan.

To object to.

Example: Many religious leaders oppose cloning humans.

To present or set up in opposition; to pose.

Example: They are opposed to any form of hierarchy.

To place in front of, or over against; to set opposite; to exhibit.

That opposes or oppose; on the opposite side.

Example: opposing armies