third class

noun

: the level of service on a train, ship, etc., that is the cheapest

: a class of mail in the U.S. that includes advertisements

: an undergraduate degree of the lowest level given by a British university

Full Definition of THIRD CLASS

: the third and usually next below second class in a classification

: the least expensive class of accommodations (as on a passenger ship)

: a former class of United States mail comprising circulars, pamphlets, catalogs, and newsletters

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1748

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