serve, service

With the exception of finance, urban planning and other specialized fields, the verb service means to repair or maintain.

• We can service your car while you shop.
• A large proportion of each tax dollar is spent to service the national debt.
• Once Ontario Hydro has finished its work, the new housing project will be fully serviced.

The more general term is serve, especially in relation to people.

• This school board serves Metropolitan Toronto.
• The airline is proud of the way it serves its customers.