First class and First-class mail

Similar meaning terms

First class noun - Mail that includes letters and postcards and packages sealed against inspection.

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First-class mail is a synonym for first class. In some cases you can use "First-class mail" instead a noun phrase "First class".

First-class mail noun - Mail that includes letters and postcards and packages sealed against inspection.

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First class is a synonym for first-class mail. You can use "First class" instead a noun phrase "First-class mail".

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First-class mail and First class. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/first_class/first-class_mail

First class & First-class mail. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/first_class/first-class_mail>.

First-class mail or First class. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/first_class/first-class_mail.