What does contra mean as a prefix?

The prefix "contra" comes from Latin and means "against," "opposite," "contrary," or "counter." It indicates opposition or a contrary action.

Here are some examples of words with the prefix "contra":

* Contradict: To speak against or deny the truth of something.

* Contraband: Goods that are illegal to import or export.

* Contraception: The prevention of conception or pregnancy.

* Contraindication: A reason why a particular treatment should not be given.

* Counterproductive: Having the opposite of the desired effect.

The prefix "contra" can also be used to form compound words, such as "contraflow" (a system of traffic flow in opposite directions) and "counterargument" (an argument that opposes another argument).