from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The first, highest, or best group in a system of classification: a restaurant of the first class.
  • n. The most luxurious and most expensive class of accommodations on a train, passenger ship, airplane, or other conveyance.
  • n. A class of mail including letters, post cards, and sealed packages.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Belonging to the best or top group in a system of classification.
  • adj. Of, or relating to the most luxurious and expensive class of accommodation on a train, ship, hotel, etc.
  • adj. Of, or relating to a class of mail to be delivered before second class.
  • adj. Of, or relating to a first class match.
  • adj. Of, or relating to a treatment like that for a first-class citizen.
  • proper n. A rank in the Boy Scouts of America, above tenderfoot and second class, that traditionally has required proficiency in scoutcraft skills.


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