What is being compared in the following similie?
The noise of a door slamming came from downstairs and reverberated through the house loudly like a gunshot that Bruno jumped and Maria let out a small scream.
The noise of the door being slammed is being compared to a gunshot. This is an apt comparison because the reader can imagine that the door was slammed very loudly, similar to the deafening sound that a gunshot makes.
