释义 |
1st-class mail ThesaurusNoun | 1. 1st-class mail - mail that includes letters and postcards and packages sealed against inspection1st class, first-class mail, first classmail - the bags of letters and packages that are transported by the postal servicecorrespondence - communication by the exchange of letters |
1st-class mail
Synonyms for 1st-class mailnoun mail that includes letters and postcards and packages sealed against inspectionSynonyms- 1st class
- first-class mail
- first class
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