1hush 
/ˈhʌʃ/ verb
hush·es; hushed; hush·ing /ˈhʌʃ/ verb 1 [+ obj] : to make (someone) quiet, calm, or still
▪ The woman in the seat behind me was trying to hush her baby. ▪ The judge hushed the spectators. — often used as (be) hushed ▪ The crowd was hushed. ▪ a hushed [=quiet] courtroom ▪ speaking in hushed [=whispering] tones 2 [no obj] : to become quiet
▪ The spectators hushed as the judge entered the courtroom. ▪ The room hushed [=people stopped talking, making noise, etc.] as the theater lights dimmed. — usually used to tell someone to be quiet ▪ Hush, children. I'm going to tell you a story.
▪ The woman in the seat behind me was trying to hush her baby. ▪ The judge hushed the spectators. — often used as (be) hushed ▪ The crowd was hushed. ▪ a hushed [=quiet] courtroom ▪ speaking in hushed [=whispering] tones
▪ The spectators hushed as the judge entered the courtroom. ▪ The room hushed [=people stopped talking, making noise, etc.] as the theater lights dimmed. — usually used to tell someone to be quiet ▪ Hush, children. I'm going to tell you a story.
hush up [phrasal verb]
hush (something) up or hush up (something) : to prevent people from knowing the truth about (something, such as a crime)
▪ hush up a crime/scandal ▪ The city government tried to hush things up when the mayor was arrested.
▪ hush up a crime/scandal ▪ The city government tried to hush things up when the mayor was arrested.
