verb
hushes; hushed; hushing
[+ obj] :to make (someone) quiet, calm, or still
[no obj] :to become quiet
usually used to tell someone to be quiet
hush up
[phrasal verb]
hush (something) up or hush up (something) :to prevent people from knowing the truth about (something, such as a crime)
noun
[singular] :a time of silence, stillness, or calm especially after noise