Oxford Dictionary English

    third-class

    adjective
    adjective
    BrE BrE//ˌθɜːd ˈklɑːs//
    ; NAmE NAmE//ˌθɜːrd ˈklæs//
    Exams and degrees, Parts of boats and ships
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  1. 1(especially in the past) connected with the cheapest and least comfortable way of travelling on a train, ship, etc. See related entries: Parts of boats and ships
  2. 2(in the US) connected with the class of mail used to send advertisements, etc.
  3. 3[only before noun] used to describe the lowest standard of degree given by a British university See related entries: Exams and degrees
  4. 4(disapproving) (of people) less important than other people They are treated as third-class citizens.
See third-class in the Oxford Advanced American Dictionary
Check pronunciation: third-class
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