against
The Italian word 'contro' is used similarly to the English word 'against'. It can be used to indicate opposition or hostility to something. Additionally, it can also be used in a physical sense to denote something touching or leaning to another.
I'm going against the current.
This phrase can be used both literally, such as swimming against the current in a river, and metaphorically, like going against popular opinion or trend.
I voted against that proposal.
In this context, 'contro' refers to being in opposition to something. The speaker is expressing that they voted in opposition to a specific proposal.
The ball went against the wall.
This phrase is most often used literally to describe a ball hitting or going in the direction of the wall.