opposes
v.v. to disagree strongly with a plan, idea, or person and try to stop them. You use this when you are against something and want to prevent it from happening.
v. to disagree with or resist a policy, proposal, or person, often by active effort. Transitive — requires a direct object representing the entity being resisted.
The local community strongly opposes the new highway project.
The senator opposes the new tax law because she believes it will hurt small businesses in her district.
While the board of directors initially supported the merger, a vocal group of shareholders continues to oppose the deal on the grounds that it undervalues the company's long-term assets.
The verb is transitive and takes a direct object.
They oppose against the planThey oppose the planOppose is a transitive verb and does not take the preposition 'against'; the object follows the verb directly.