1. A comprehensive maintenance or repair service that involves significant work, typically scheduled at regular intervals for vehicles or appliances
The car needs a major service after 50,000 miles.
O carro precisa de um serviço maior após 50.000 quilômetros.
2. In a broader context, an important or essential service of significant scope or consequence
The hospital provides major services to the community.
O hospital fornece serviços maiores para a comunidade.