Service could mean:

• Service (economics), an activity offered as a product--the non-material equivalent of a good in economics and marketing
• The Service Sector, the tertiary sector of industry
• Domestic service, employment in a residence
• Military service, the whole or part of a country's armed forces, or the act of serving in those forces
• Civil service, career employees of government
• Service, a Pakistani group of companies, comprised of (among others) Service Shoes, Service Tyres and ServAid (Chain of Pharmacies)
• A penetrant, as defined by a building code
• Systems Architecture Service, the provision of a discrete business or technology function within a systems environment; i.e. Business Service – “Manage Customer Address”; Technical Service – “Create E-Mail Notification”
• Serve (tennis), a shot to start a point in tennis
• Windows Service, a background computer program in Microsoft Windows
• Web service, a software system designed to support interoperable machine-to-machine interaction over a network
• A program in the Services menu that processes selected data
• IRC services, a set of features implemented in most modern Internet Relay Chat networks
• Service of worship, a meeting for the worship of God
• Service (music), musical settings for sections of a service of worship
• Service of process, the delivery of a summons, complaint or other court petition
• Service Tree (Sorbus domestica), a species of tree
• Robert W. Service, poet