noun

• (elliptical, uncountable) Work as a member of the military.
  "Thank you for your service."
• (economics) The practice of providing assistance as economic activity.
  "Hair care is a service industry."
• (business) Synonym of utility (“commodity provided on a continuous basis by a physical infrastructure network, such as electricity, water supply or sewerage”).
• (computing) A function that is provided by one program or machine for another.
  "This machine provides the name service for the LAN."

verb

• (transitive) To serve.
  "They service the customer base."
• (transitive) To serve.
  "He is going to service the car."
• (transitive) To serve.
  "One obvious way is press releases, which should be sent to your region's reporters, editors and columnists, the wire services, professional publications. […] Servicing the media should be an everyday thing."
• (transitive) To make a repayment or pay interest (on a debt).
  "It continues to be laden with intense debt servicing costs."