Nouns

(n)servicework done by one person or group that benefits another“budget separately for goods and services”
(n)servicean act of help or assistance; something (such as a tool, software or system) used to render said help or assistance“he did them a service”
(n)service, religious service, divine servicethe act of public worship following prescribed rules“the Sunday service”
(n)servicea company or agency that performs a public service; subject to government regulation
(n)serviceemployment in or work for another“he retired after 30 years of service”
(n)military service, armed service, servicea force that is a branch of the armed forces
(n)avail, help, servicea means of serving“of no avail”, “there's no help for it”
(n)service, table servicetableware consisting of a complete set of articles (silver or dishware) for use at table
(n)servicing, servicethe act of mating by male animals“the bull was worth good money in servicing fees”
(n)service(law) the acts performed by an English feudal tenant for the benefit of their lord which formed the consideration for the property granted to them
(n)serve, service(sports) a stroke that puts the ball in play“his powerful serves won the game”
(n)service, serving, service of processthe act of delivering a writ or summons upon someone“he accepted service of the subpoena”
(n)overhaul, inspection and repair, serviceperiodic maintenance on a car or machine“it was time for an overhaul on the tractor”
(n)servicethe performance of duties by a waiter or servant“that restaurant has excellent service”

Verbs

(v)service, servebe used by; as of a utility“The sewage plant served the neighboring communities”, “The garage served to shelter his horses”
(v)servicemake fit for use“service my truck”, “the washing machine needs to be serviced”
(v)serve, servicemate with“male animals serve the females for breeding purposes”