1ST CLASS

 Dictionary entry overview: What does 1st class mean? 

• 1ST CLASS (noun)
  The noun 1ST CLASS has 1 sense:

1. mail that includes letters and postcards and packages sealed against inspection

  Familiarity information: 1ST CLASS used as a noun is very rare.

 Dictionary entry details 

• 1ST CLASS (noun)

Meaning:

Mail that includes letters and postcards and packages sealed against inspection

Classified under:

Nouns denoting communicative processes and contents

Synonyms:

1st class; 1st-class mail; first-class mail; first class

Hypernyms ("1st class" is a kind of...):

mail (the bags of letters and packages that are transported by the postal service)

Hyponyms (each of the following is a kind of "1st class"):

correspondence (communication by the exchange of letters)