← BackshareGuessjumbojet/ˈdʒʌmboʊ ˌdʒɛt/nounVariant spelling of jumbo jet; a very large jet aircraft, especially the Boeing 747.The jumbojet taxied to the terminal.She watched the jumbojet take off into the clouds.The airline retired its last jumbojet after decades of service.Synonymsairlinerairplane