• Definition for "first-class mail"
    • mail which includes letters and postcards and plans…
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  • Hyponym for "first-class mail"
  • Hypernym for "first-class mail"

first-class mail definition

  • noun:
    • mail which includes letters and postcards and plans sealed against examination
    • post that features letters and postcards and packages sealed against evaluation
    • mail which includes letters and postcards and packages sealed against evaluation
    • mail which includes letters and postcards and bundles sealed against assessment
    • post that includes letters and postcards and packages sealed against assessment
    • mail that includes letters and postcards and bundles sealed against examination
    • mail that includes letters and postcards and packages sealed against evaluation
    • post which includes letters and postcards and bundles sealed against examination
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