There are multiple definitions - click on the translation that matches your context.

Dienstleistung

Substantiv

full

service

noun

Definitions of service

English

(service charge) an extra charge made for serving customers in a bar, cafe, or restaurant etc; an extra charge made for maintaining property

What is the amount one should leave for service not included at a restaurant?

English

help given to customers during and after the sale of goods

A small fee is charged for this service.

English

regular maintenance carried out on a car, plane, or other vehicle

Clios fitted with petrol engines do not require their first service until 6,000 miles.