To perform maintenance or repair work on a machine or vehicle. The mechanic will service the car to ensure it's running smoothly.
To provide assistance or support to customers or clients. The company aims to service its clients with the highest level of professionalism.
To supply with goods or services. The local store services the entire neighborhood with fresh produce.
To pay interest on a debt. The company struggled to service its loans during the economic downturn.
Of a male animal, to mate with (a female) for breeding purposes. The farmer brought in a stallion to service the mares.