- 1connected with the class of mail used to send advertisements, etc.
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
- 2(especially in the past) connected with the cheapest and least comfortable way of traveling on a train, ship, etc.
- 3(disapproving) (of people) less important than other people They are treated as third-class citizens.
adverb to travel third classSee third-class in the Oxford Advanced Learner's Dictionary
Check pronunciation: third-class