Rate
The Spanish word 'tarifa' translates to 'rate' in English. It can be used in various contexts such as transportation cost (rate per mile/kilometer), data usage (rate per gigabyte), finance (interest rate), or other services where fees are determined based on certain criteria. For example, a taxi might charge you a 'tarifa' based on your distance travelled. The context will often determine the exact interpretation of 'tarifa'.
The bus fare has increased.
In this context, 'tarifa' is used to refer to the set price for a service, specifically the cost of riding the bus. The example indicates the cost has recently gone up.
That hotel has a weekly rate.
Here, 'tarifa' is used to denote the cost of a room at a hotel for one week's stay. The use of the adjective 'semanal' shows that the hotel charges on a weekly basis.
The taxi fare varies depending on the distance.
In this sample sentence, 'tarifa' represents the cost for a taxi ride. The statement implies that the rate fluctuates depending on the length of the trip.