What is the meaning of First_class?

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.

Of, or relating to a class of mail to be delivered before second class.

Of or relating to a first class match.

Of or relating to a treatment like that for a first-class object.

(A status, section, etc which is of) premier rank.

the third year of primary school, following after the junior and senior infant levels.

One of two classes of city government in the U.S. state of Kentucky, in which cities elect a mayor and aldermen.

Source: wiktionary.org

See also