first class

Noun
  1. is a type of: high quality, superiority - the quality of being superior
  2. is a type of: mail - the bags of letters and packages that are transported by the postal service
    subtypes: correspondence - communication by the exchange of letters
    same as: 1st class, 1st-class mail, first-class mail
  3. is a type of: accommodation - living quarters provided for public convenience
Adverb

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