Welcome to the new LearnersDictionary.com. We want to hear your thoughts about the new design.

first class

first classnoun
first class
Learner's definition of FIRST CLASS  
: the best or highest group or class: such as
: the best of usually three kinds of service you can have when you travel
   b : a class of mail in the U.S. that includes letters and postcards
   c : a class of mail in the U.K. that includes letters and packages which are delivered sooner than ordinary second-class mail but cost more to send
Comments & Questions  
Comments & Questions
What made you want to look up first class? Include any comments and questions you have about this word.