Sentence:  His first six months in Burma he had spent in Rangoon, where he was supposed to be learning the office side of his business. He had lived in a "<WSD>chummery</WSD>" with four other youths who devoted their entire energies to debauchery. 
Meaning of the word marked with <WSD> tags:  The shared home of a group of men who are unmarried or working at a distance from their families.