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third-class mail

 

Definitions from WordNet

Noun third-class mail has 1 sense
  1. third-class mail, third class - mail consisting of printed matter qualifying for reduced postal rates
    --1 is a kind of mail
    --1 has particulars: junk mail

Definitions from the Web

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thiotepa thiothixene thiouracil thir thiram third- third-biggest third-busiest third-class mail third-degree burn third-dimensional third-dimensionality third-generation third-grade third-grader third-graders third-largest

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