first_class
1. [ noun ] the highest rank in a classification
Related terms: superiority
2. [ noun ] mail that includes letters and postcards and packages sealed against inspection
Synonyms: first-class_mail 1st-class_mail priority_mail 1st_class
Related terms: mail correspondence
3. [ noun ] (housing) the most expensive accommodations on a ship or train or plane
Related terms: accommodation
Similar spelling:   first-class
  first_and_last
  first_base
  first_cause
  first_cousin
  First_Crusade
  first_baseman
  first_step
  first_lady
  First_State
  First_Reich
  first_blush
  first_strike
  first_sacker
  first_person
  first_of_all
  first_estate
  first_stomach
  first_off
  first_balcony
  first_aid