first-class
first-class (fẽrst"klas`) , adjective
Of the best class; of the highest rank; in the first division; of the best quality; first-rate; as, a first-class telescope.
Collocations (1)
First-class car or First-class railway carriage , any passenger car of the highest regular class, and intended for passengers who pay the highest regular rate; -- distinguished from a second-class car.