All possible synonyms of the word 1st class as well as its hypernyms, hyponyms, antonyms, derivations, entailments, meronyms, pertainyms, domain members, similar words, verb groups, and so on...
First class, 1st class, first-class mail, 1st-class mail
- mail that includes letters and postcards and packages sealed against inspection
- first class
- 1st class
- first-class mail
- 1st-class mail
- mail: the bags of letters and packages that are transported by the postal service
- correspondence: communication by the exchange of letters
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