Belonging to the best or top group in a system of classification. / Of, or relating to the most luxurious and expensive class of accommodation on a train, ship, hotel, etc.

(A status, section, etc which is of) premier rank. / (Ireland) the third year of primary school, following after the junior and senior infant levels.

plural of first class

(cricket) A three- or five-day cricket match, with two innings per side, played under a set of conditions specified and officially recognised by an official governing body of cricket.

(US) An enlisted rank in the United States Army, of rank E-3, ranking above a private and below a corporal or specialist.

(US, Army) A non-commissioned officer in the United States Army, ranking above a staff sergeant and below a master sergeant or first sergeant.

plural of sergeant first class

plural of first-class value

A member of a class of individuals that receive fair treatment. / (programming, languages) Synonym of first-class object

plural of first-class citizen