first class

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See synonyms for: first class / first classes on Thesaurus.com


the best, finest, or highest class, grade, or rank.
the most expensive and most luxurious class of accommodation on trains, ships, airplanes, etc.
(in the U.S. Postal Service) the class of mail consisting of letters, postal cards, or the like, together with all mailable matter sealed against inspection.
British University. the group receiving the highest distinction in an honors course.



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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of first class

First recorded in 1740–50

Definition for first class (2 of 2)

[ furst-klas, -klahs ]
/ ˈfɜrstˈklæs, -ˈklɑs /


of the highest or best class or quality: a first-class movie.
best-equipped and most expensive: a first-class railroad car.
given or entitled to preferred treatment, handling, etc.: first-class mail.


by first-class conveyance: to travel first-class.

Origin of first-class

First recorded in 1780–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for first class

first class


the class or grade of the best or highest value, quality, etc

adjective (first-class when prenominal)

adverb first-class

by first-class mail, means of transportation, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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