against is a preposition, but object and oppose are verbs they give the same meaning, that you don't agree to something , refuse something or don't like it. i'm against any changes in the plan. i oppose any changes in the plan. i object to any changes in the plan.

ohayou, takuya san, daijoubu desuka. i think to object = monomousu, oppose= sakarau, tatetsuku (^_^;) not sure.

Hi, try using www.thefreedictionary.com