third class
noun /ˌθɜːd ˈklɑːs/
/ˌθɜːrd ˈklæs/
- [uncountable, singular] (especially in the past) the cheapest and least comfortable part of a train, ship, etc.Topics Transport by waterb1
- [uncountable] (in the US) the class of mail used for sending advertisements, etc.
- [uncountable, singular] the lowest standard of honours degree given by a British universityTopics Educationc2