Sentence:  During the summer he had tried to repair some of his losses at the track , and the bare trees reminded him that his pari-mutuel <WSD>tickets</WSD> would still be lying , like leaves , in the gutters near Belmont and Saratoga . 
Meaning of the word marked with <WSD> tags:  a commercial document showing that the holder is entitled to something (as to ride on public transportation or to enter a public entertainment)