the class of accommodations on a passenger ship less costly and luxurious than first class but more so than tourist class.Compare second class(def 1).
Origin of cabin class
First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a class of accommodation on a passenger ship between first class and tourist class
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