To save this word, you'll need to log in.
Definition of first-class
(Entry 1 of 2)
1 : of or relating to first class
2 : of the highest quality
a first-class meal
first class
nounDefinition of first class (Entry 2 of 2)
: the first or highest group in a classification: such as
a : the highest of usually three classes of travel accommodations
b : a class of mail that comprises letters, postcards, or matter sealed against inspection
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Test Your Vocabulary
Great Scrabble Words—A Quiz
- Which of the following Q-without-U words means the number five in cards or dice?

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share first-class
Time Traveler for first-class
The first known use of first-class was in 1616
See more words from the same year