fourth-class [fawrth-klas, -klahs, fohrth-] Examples adjective

  1. of, relating to, or designated as a class next below third, as for mailing, shipping, etc.


  1. as fourth-class matter; by fourth-class mail: Send it fourth-class.

fourth class noun

  1. (in the U.S. Postal Service) the class of mail consisting of merchandise weighing one pound or more, including parcel post and all first-, second-, or third-class matter weighing 8 ounces (227 grams) or more and not sealed against inspection.

Origin of fourth class An Americanism dating back to 1860–65 Examples from the Web for fourth-class Historical Examples of fourth-class

  • The mail came every two weeks, and its magnitude was of the fourth-class order.

    That Girl Montana

    Marah Ellis Ryan

  • No fourth-class men were allowed to attend except the two seconds.

    Captain Jinks, Hero

    Ernest Crosby

  • No fourth-class postmaster receives more than a thousand dollars a year.

    The Scrap Book, Volume 1, No. 3


  • Fourth-class postmasters receive no fixed salary, but instead are paid a percentage of the value of the stamps cancelled.

    Government in the United States

    James Wilford Garner

  • The rate then payable on such parcels was the general rate for fourth-class matter, viz.

    The Development of Rates of Postage

    A. D. Smith

  • British Dictionary definitions for fourth-class fourth-class adjective

    1. of or relating to mail that is carried at the lowest rate


    1. by fourth-class mail
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