Pierages refer to the fees charged for the maintenance and use of a bridge or other crossing over a waterway. There are several synonyms for this term including tolls, levies, charges, cost, fares, and tariffs. Toll refers to a fee or charge for the use of a particular road, bridge, or other infrastructure. Levies, on the other hand, are taxes charged by the government on goods and services. Charges and costs refer to the expenses incurred for the provision of a service. Fares are the charges levied for transportation, while tariffs refer to taxes imposed on goods imported or exported between countries.