Definitions for fourth class

This page provides all possible meanings and translations of the word fourth class

Random House Webster's College Dictionary

fourth′ class′(n.)

  1. (in the U.S. Postal Service) the class of mail consisting of merchandise weighing one pound or more and not sealed against inspection.

    Category: Philately

Origin of fourth class:

1860–65, Amer.


  1. of, pertaining to, or designated as a class next below third.

  2. (adv.)by fourth-class mail.

    Category: Philately

Origin of fourth-class:



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