second class

second class noun
second class
noun
Britannica Dictionary definition of SECOND CLASS
1 
[noncount]
a  : a level of service on a train, ship, etc., that is just below first class
b  : a class of mail in the U.S. that includes newspapers, magazines, etc.
c  : a class of mail in the UK that costs less and takes longer to arrive than first class
2 
[singular] British : an undergraduate degree of the second highest level given by a British university