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They were both in white, and their dresses were RIPPLING and FLUTTERING as if they had just been blown back in after a short flight around the house. I must have stood for a few moments listening to the WHIP and SNAP of the curtains and the groan of a picture on the wall.
The words rippling, fluttering, whip, and snap are examples of this literary device meaning "the naming of a thing or action by a vocal imitation of the sound associated with it"
What is Onomatopoeia?