service (nom)
Sens 1 : a company or agency that performs a public service; subject to government regulation. [source : WN]
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Sens 2 : the section of the economy that supplies needs of the consumer but produces no tangible goods. [source : OED]
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Sens 3 : the action of serving, helping, or benefiting; conduct tending to the welfare or advantage of another. [source : OED]