first-class
A. -adjective
1. [passenger, accommodation] de primera clase [travel, compartment, train] de primera (clase) [stamp] referido a un sello de correos, que asegura mayor rapidez en la entrega
2. (=very good) [education, performance] de primera (calidad)
B. -compound
·first-class compartment -noun (railways) compartimento (m) de primera
·first-class honours degree -noun (university) licenciatura (f) con matrícula de honor
·first-class mail
·first-class post -noun servicio de correos que asegura mayor rapidez en la entrega
·first-class ticket -noun (railways) billete or Latin America boleto
C. -adverb
·to travel first-class
·viajar en primera
·to send a letter first-class
enviar una carta por el sistema de correos que asegura una entrega rápida