second-class mail


a less expensive, slower mail service
ExampleThe letter took three days to arrive because he sent it second-class.

Use second-class mail in a sentence

You may be fine sending something with second-class mail if it is not that important and not a big deal.

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When he went to send in the tax forms, he chose second-class mail, secure in the knowledge that they would still be postmarked April 15.

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My mother frequently sent us Christmas cards that would arrive the day before New Year's because she would only agree to pay for second-class mail.

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second-class seconder