- 1(disapproving) (of a person) less important than other people Older people should not be treated as second-class citizens.
- 2 of a lower standard or quality than the best a second-class education
- 3 connected with the system of sending newspapers and magazines by mail
- 4[only before noun] connected with the less expensive way of traveling on a train, ship, etc. second-class carriages/compartments/passengers
second classjump to other results
adverb to send a magazine second class to travel second class