"Keep it down!" (4)
I believe the answer is:
hush
(Other definitions for hush that I've seen before include "Noiselessness" , "Soothe" , "Make or become silent or quiet" , "Quieten" , "Mum's the word" .)
I believe the answer is:
hush
(Other definitions for hush that I've seen before include "Noiselessness" , "Soothe" , "Make or become silent or quiet" , "Quieten" , "Mum's the word" .)