A2[C]a group into which goods, services, or people are put according to their standard: Whenever I travel by train, I always travel first class.first/second class maila business/economy class ticketAll the vegetables we sell are Class A.When it comes to mathematics, he's in a different class to his peers.Quality and standard›[C]in the UK, the standard that someone has reached in their university degree: What class of degree did you get?He graduated with a second-class honours degree in physics.Marks and resultsbe in a class of your own›to be the best at a particular activity: As a long-distance runner, she's in a class of her own.Informal words for goodGood, better and bestQuite good, or not very goodbe in a class by itself/of its own›to be something of such a high quality that nothing can be compared to itInformal words for goodGood, better and bestQuite good, or not very goodbe out of your class›to be much better at doing something than you: I can't play chess with him. He's completely out of my class!Quality and standard