Definitions for "First Class"
Top quality seats or services. Usually, first class service is the best a supplier has to offer.
the highest rank in a classification
The third badge of rank earned as a Boy Scout. Usually achieved within a year of joining a troop.
An average comfortable hotel with standardized rooms, amenities and public areas. Dependable. May have superior executive level or wing.
the most expensive accommodations on a ship or train or plane
The portion of the aircraft offering the most service and most comfortable accommodations.
Unrestricted full published fares which allow changes and full refund without penalty.
FirstClass is an email, online conferencing, and bulletin-board system for Windows, Macintosh, and Linux.
mail that includes letters and postcards and packages sealed against inspection
Keywords:  postage, five, delivered, three, days
Postage which is delivered in three to five business days.