1.  service department(n = noun.group) Array - the division of a business that provides customer services; Array
is a kind of business department

2.  service department(n = noun.artifact) garage - a repair shop where cars and trucks are serviced and repaired; Array
is a kind of fix-it shop, repair shop

academic department, advertising department, advisory service, agriculture department, anthropology department, armed service, art department, attestation service, biology department, bond service, bord service, building department, bus service, business department, cable television service, canadian security intelligence service, chapel service, chemistry department, child welfare service, church service, civil service, civil service commission, civil service reform, commerce department, committal service, community service, consulting service, curb service, customs service, debt service, defense department, defense reutilization and marketing service, department, department head, department of agriculture, department of anthropology, department of biology, department of chemistry, department of commerce, department of commerce and labor, department of computer science, department of corrections, department of defense, department of defense laboratory system, department of economics, department of education, department of energy, department of energy intelligence, department of english, department of health and human services, department of health education and welfare, department of history, department of housing and urban development, department of justice, department of justice canada, department of labor, department of linguistics, department of local government, department of mathematics, department of music, department of philosophy, department of physics, department of psychology, department of sociology, department of state, department of the federal government, department of the interior, department of the treasury, department of transportation, department of veterans affairs, department store, dinner service, diplomatic service, distinguished service cross, distinguished service medal, distinguished service order, divine service, economics department, editorial department, education department, electronic information service, energy department, english department, executive department, extension service, federal department, federal protective service, federal security service, financial management service, fire department, foreign intelligence service, foreign service, full service bank, gas service, government department, history department, ill service, immigration and naturalization service, intelligence service, interior department, internal revenue service, iraqi intelligence service, justice department, knight service, knight's service, labor department, length of service, linguistics department, lip service, local department, mail service, mathematics department, military service, music department, national park service, national service, national technical information service, national weather service, navy department, parts department, payroll department, personnel department, philosophy department, phone service, physics department, plant department, police department, postal service, power service, prayer service, psychology department, public service, purchasing department, religious service, robert william service, sales department, sanitation department, secret intelligence service, secret service, secretary of state for the home department, security department, security service, selective service, selective service system, service, service abroad, service agency, service area, service book, service break, service bureau, service call, service cap, service ceiling, service charge, service club, service contract, service cutback, service door, service elevator, service entrance, service fee, service firm, service hat, service industry, service line, service man, service of process, service program, service road, service routine, service staff, service station, service stripe, service tree, service uniform, social service, sociology department, special air service, state department, subsistence department, table service, tea service, telephone service, treasury department, united states department of defense, united states department of state, united states fish and wildlife service, united states marshals service, united states postal inspection service, united states postal service, united states public health service, united states secret service, us fish and wildlife service, us marshals service, us postal inspection service, us postal service, us secret service, war department, wild service tree, wire service