What is the meaning of Oppose?

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

To object to.

To present or set up in opposition; to pose.

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

inflection of opposer:

  1. first/third-person singular present indicative/subjunctive
  2. second-person singular imperative

first/third-person singular present indicative/subjunctive

second-person singular imperative

third-person singular past historic of opporre

Source: wiktionary.org