Complimentary food refers to meals or snacks provided at no extra cost, often offered by establishments like hotels, airlines, or restaurants. This practice aims to enhance customer satisfaction and create a welcoming atmosphere. For example, many hotels provide complimentary breakfast to guests as part of their stay. In the airline industry, complimentary food may include snacks or meals served during flights, especially on longer journeys. This service can vary based on the airline's class of service, with first-class passengers typically receiving more elaborate meal options compared to those in economy class.