Communicate silently, in a way (5)
I believe the answer is:
mouth
(Other definitions for mouth that I've seen before include "Gob" , "Where a river enters the sea" , "chops" , "trap" , "River part - conversation opener?" .)
I believe the answer is:
mouth
(Other definitions for mouth that I've seen before include "Gob" , "Where a river enters the sea" , "chops" , "trap" , "River part - conversation opener?" .)