Sentence:  But to make things even worse, this is the year of the Seventy-fifth Hunger Games, and that means it's also a Quarter <WSD>Quell</WSD>. They occur every twenty-five years, marking the anniversary of the districts' defeat with over-the-top celebrations and, for extra fun, some miserable twist for the tributes. 
Meaning of the word marked with <WSD> tags:  A subduing.