Definition of hush noun from the Oxford Advanced American Dictionary

 

hush

 noun
noun
NAmE//hʌʃ//
 
[singular, uncountable]
 
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a period of silence, especially following a lot of noise, or when people are expecting something to happen There was a deathly hush in the theater. A hush descended over the waiting crowd.
See the Oxford Advanced Learner's Dictionary entry: hush