I expected to hear back from them but I never heard a 'whisper'. [=I never heard from them again]
“I've had more than I can stand,” she complained in a 'stage whisper'.
I couldn't hear what they were saying because they were 'whispering'.
(..) Ever look into Willy's eyes? Those eyes discovered the stars Long before man Was even a whisper on mother earth. Look into a man's soul if they want. Willy... He won't look (..)1993 Free Willy