shush /ʃʊʃ/ BrE AmE verb
[ Date: 1900-2000 ; Origin: shh ]
1 . shush! spoken used to tell someone, especially a child, to be quiet SYN shh :
‘Shush!’ said Jerry. ‘Not so loud.’
2 . [transitive] to tell someone to be very quiet, especially by putting your fingers against your lips or by saying ‘shush’:
He started to cry and Francesca shushed him.