Sentence:  They got <WSD>tin</WSD> cups of coffee from the big pot on the coosie 's fire , rolled and lighted brown paper cigarettes , lounged about . 
Meaning of the word marked with <WSD> tags:  a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide