FIRST-CLASS

{adj.} 1. Of the highest class or best kind; excellent; first-rate. * /Jane did a first-class job of repairing the coat./ * /It was a first-class TV program./ Compare: TOP-NOTCH. 2. Of the best or most expensive class of travelling. * /Mr. Jones bought a first-class plane ticket to Chicago./ 3. Belonging to the class of mail for sending letters, post cards, and handwritten or typewritten mail that is sealed. * /It is expensive to send a heavy letter by first-class mail./