Sentence:  "<WSD>Flyings</WSD>" could vary considerably in complexity and lavishness and could involve an actor or property being either lifted from the stage into the flies above or vice versa. As Colin Visser has observed, <WSD>flyings</WSD> and sinkings are both "associated with supernatural manifestations of various kinds" ... 
Meaning of the word marked with <WSD> tags:  An act of flight.